Rebuild PSA API spec with Sphinx 2.1.2

Generated according to the instructions in update_psa_crypto_api.sh,
using a modified docker image with Sphinx updated to 2.1.2, and the tag
psa-crypto-api-1.0.1.

This fixes user-visible warnings in html/api/keys/management.html.

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
diff --git a/docs/html/appendix/example_header.html b/docs/html/appendix/example_header.html
index 3689be7..0bb43a9 100644
--- a/docs/html/appendix/example_header.html
+++ b/docs/html/appendix/example_header.html
@@ -1,26 +1,17 @@
 
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
-  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<!DOCTYPE html>
 
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+    <meta charset="utf-8" />
     <title>Example header file &#8212; PSA Crypto API 1.0.1 documentation</title>
     <link rel="stylesheet" href="../_static/alabaster.css" type="text/css" />
     <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
-    <script type="text/javascript">
-      var DOCUMENTATION_OPTIONS = {
-        URL_ROOT:    '../',
-        VERSION:     '1.0.1',
-        COLLAPSE_INDEX: false,
-        FILE_SUFFIX: '.html',
-        HAS_SOURCE:  false,
-        SOURCELINK_SUFFIX: '.txt'
-      };
-    </script>
+    <script type="text/javascript" id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></script>
     <script type="text/javascript" src="../_static/jquery.js"></script>
     <script type="text/javascript" src="../_static/underscore.js"></script>
     <script type="text/javascript" src="../_static/doctools.js"></script>
+    <script type="text/javascript" src="../_static/language_data.js"></script>
     <link rel="author" title="About these documents" href="../about.html" />
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -29,25 +20,26 @@
    
   <link rel="stylesheet" href="../_static/custom.css" type="text/css" />
   
+  
   <meta name="viewport" content="width=device-width, initial-scale=0.9, maximum-scale=0.9" />
 
-  </head>
-  <body>
+  </head><body>
   
 
     <div class="document">
       <div class="documentwrapper">
         <div class="bodywrapper">
+          
+
           <div class="body" role="main">
             
   <div class="section" id="example-header-file">
 <span id="appendix-example-header"></span><h1>Example header file</h1>
-<p>Each implementation of the PSA Crypto API must provide a header file named <code class="file docutils literal"><span class="pre">psa/crypto.h</span></code>, in which the API elements in this specification are defined.</p>
-<p>This appendix provides a example of the <code class="file docutils literal"><span class="pre">psa/crypto.h</span></code> header file with all of the API elements. This can be used as a starting point or reference for an implementation.</p>
+<p>Each implementation of the PSA Crypto API must provide a header file named <code class="file docutils literal notranslate"><span class="pre">psa/crypto.h</span></code>, in which the API elements in this specification are defined.</p>
+<p>This appendix provides a example of the <code class="file docutils literal notranslate"><span class="pre">psa/crypto.h</span></code> header file with all of the API elements. This can be used as a starting point or reference for an implementation.</p>
 <div class="section" id="psa-crypto-h">
 <h2>psa/crypto.h</h2>
-<pre class="literal-block">
-typedef <em><a class="reference internal" href="../overview/implementation.html#implementation-defined-type"><span class="std std-ref">/* implementation-defined type */</span></a></em> <a class="reference internal" href="../api/ops/aead.html#c.psa_aead_operation_t" title="psa_aead_operation_t">psa_aead_operation_t</a>;
+<pre class="literal-block">typedef <em><a class="reference internal" href="../overview/implementation.html#implementation-defined-type"><span class="std std-ref">/* implementation-defined type */</span></a></em> <a class="reference internal" href="../api/ops/aead.html#c.psa_aead_operation_t" title="psa_aead_operation_t">psa_aead_operation_t</a>;
 typedef uint32_t <a class="reference internal" href="../api/ops/algorithms.html#c.psa_algorithm_t" title="psa_algorithm_t">psa_algorithm_t</a>;
 typedef <em><a class="reference internal" href="../overview/implementation.html#implementation-defined-type"><span class="std std-ref">/* implementation-defined type */</span></a></em> <a class="reference internal" href="../api/ops/ciphers.html#c.psa_cipher_operation_t" title="psa_cipher_operation_t">psa_cipher_operation_t</a>;
 typedef uint8_t <a class="reference internal" href="../api/keys/types.html#c.psa_dh_family_t" title="psa_dh_family_t">psa_dh_family_t</a>;
@@ -624,13 +616,13 @@
                                 size_t input_length,
                                 const uint8_t * signature,
                                 size_t signature_length);
-
 </pre>
 </div>
 </div>
 
 
           </div>
+          
         </div>
       </div>
       <div class="sphinxsidebar" role="navigation" aria-label="main navigation">
@@ -666,13 +658,13 @@
 <li class="toctree-l1"><a class="reference internal" href="../psa_c-identifiers.html">Index of API elements</a></li>
 </ul>
 <div id="searchbox" style="display: none" role="search">
-  <h3>Quick search</h3>
+  <h3 id="searchlabel">Quick search</h3>
+    <div class="searchformwrapper">
     <form class="search" action="../search.html" method="get">
-      <div><input type="text" name="q" /></div>
-      <div><input type="submit" value="Go" /></div>
-      <input type="hidden" name="check_keywords" value="yes" />
-      <input type="hidden" name="area" value="default" />
+      <input type="text" name="q" aria-labelledby="searchlabel" />
+      <input type="submit" value="Go" />
     </form>
+    </div>
 </div>
 <script type="text/javascript">$('#searchbox').show(0);</script>
         </div>
@@ -683,8 +675,8 @@
       &copy; 2018-2020, Arm Limited or its affiliates. All rights reserved.
       
       |
-      Powered by <a href="http://sphinx-doc.org/">Sphinx 1.6.7</a>
-      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.8</a>
+      Powered by <a href="http://sphinx-doc.org/">Sphinx 2.1.2</a>
+      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.12</a>
       
     </div>