Merge mbedtls 2.16.6 into baremetal

Conflicts:
mbedtls.doxyfile - PROJECT_NAME - mbed TLS v2.16.6 chosen.
doc_mainpage.h - mbed TLS v2.16.6 version chosen.
hmac_drbg.h - line 260, extended description chosen.
            - line 313, extended description chosen.
            - line 338, extended description chosen.
version.h - 2.16.6 chosen.
CMakeLists.txt - 2.16.6 chosen.
test_suite_version.data - 2.16.6 chosen.
Makefile - 141 - manual correction - baremetal version of C_SOURCE_FILES
                 with variables for directories plus 2.16.6 CTAGS addition.
pkparse.c - lines 846 onwards - the asn1_get_nonzero_mpi implementation chosen.
ssl_tls.c - line 5269 - edited manually, left the ret=0, because baremetal has
            a different behaviour since commit 87b5626, but added a debug
            message that's new in 2.16.6.    
all.sh:
- component_build_deprecated - chosen the refactored version from 2.16.6,
                               but with extra flags from baremetal.
- rest of the _no_xxx tests - merged make options to have PTHREAD=1 and
                              other changes from 2.16.6 (like -O1 instead of -O0).
- component_build_arm_none_eabi_gcc_no_64bit_multiplication - added 
                              TINYCRYPT_BUILD=0 to the 2.16.6 version of make.

x509/req_app.c - left baremetal log but with mbedtls_exit( 0 ) call.
x509/crl_app.c - left baremetal log but with mbedtls_exit( 0 ) call.
x509/cert_app.c - left baremetal log but with mbedtls_exit( 0 ) call.
ssl/ssl_mail_client.c - left baremetal log but with mbedtls_exit( 0 ) call.
ssl/ssl_pthread_server.c - left baremetal log but with mbedtls_exit( 0 ) call.
ssl/ssl_fork_server.c - left baremetal log but with mbedtls_exit( 0 ) call.
ssl_client1.c - line 54 - left baremetal log but with mbedtls_exit( 0 ) call.
ssl_client2.c - line 54 - left baremetal log but with mbedtls_exit( 0 ) call.
              - line 132 - new options of both branches added.
              - skip close notify handled as in 2.16.6, but with `ssl` instead of `&ssl`.
              - Merged the 2.16.6 usage split with additional baremetal usages.
              - Merged options from baremetal and 2.16.6.
ssl_server.c - left baremetal log but with mbedtls_exit( 0 ) call.
ssl_server2.c - Merged the 2.16.6 usage split with additional baremetal usages.
config.pl - fixed missing defines from the documentation, removed duplicates,
            and reorganised so that the documentation and excluded list
            are ordered in the same way.
test_suite_x509parse.data - only added the two new pathlen tests.
x509_crt.c - change the return code by removing
             MBEDTLS_ERR_X509_INVALID_EXTENSIONS, since it's added by
             x509_crt_frame_parse_ext not by an "or", but by "+=".
Changelog - Assigned all entries to appropriate sections.
ssl-opt.sh - line 8263 - merged options.
           - removed lines 1165 - 1176 - there was a duplicate test, probably
             an artifact of previous merges.
check-files.py - sticked to old formatting.

Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
diff --git a/scripts/data_files/vs6-main-template.dsp b/scripts/data_files/vs6-main-template.dsp
index dc728c4..89d3fc7 100644
--- a/scripts/data_files/vs6-main-template.dsp
+++ b/scripts/data_files/vs6-main-template.dsp
@@ -1,24 +1,24 @@
-# Microsoft Developer Studio Project File - Name="mbedtls" - Package Owner=<4>
+# Microsoft Developer Studio Project File - Name="mbedtls" - Package Owner=<4>

 # Microsoft Developer Studio Generated Build File, Format Version 6.00

 # ** DO NOT EDIT **

 

 # TARGTYPE "Win32 (x86) Static Library" 0x0104

 

-CFG=mbedtls - Win32 Debug
+CFG=mbedtls - Win32 Debug

 !MESSAGE This is not a valid makefile. To build this project using NMAKE,

 !MESSAGE use the Export Makefile command and run

 !MESSAGE 

-!MESSAGE NMAKE /f "mbedtls.mak".
+!MESSAGE NMAKE /f "mbedtls.mak".

 !MESSAGE 

 !MESSAGE You can specify a configuration when running NMAKE

 !MESSAGE by defining the macro CFG on the command line. For example:

 !MESSAGE 

-!MESSAGE NMAKE /f "mbedtls.mak" CFG="mbedtls - Win32 Debug"
+!MESSAGE NMAKE /f "mbedtls.mak" CFG="mbedtls - Win32 Debug"

 !MESSAGE 

 !MESSAGE Possible choices for configuration are:

 !MESSAGE 

-!MESSAGE "mbedtls - Win32 Release" (based on "Win32 (x86) Static Library")
-!MESSAGE "mbedtls - Win32 Debug" (based on "Win32 (x86) Static Library")
+!MESSAGE "mbedtls - Win32 Release" (based on "Win32 (x86) Static Library")

+!MESSAGE "mbedtls - Win32 Debug" (based on "Win32 (x86) Static Library")

 !MESSAGE 

 

 # Begin Project

@@ -28,7 +28,7 @@
 CPP=cl.exe

 RSC=rc.exe

 

-!IF  "$(CFG)" == "mbedtls - Win32 Release"
+!IF  "$(CFG)" == "mbedtls - Win32 Release"

 

 # PROP BASE Use_MFC 0

 # PROP BASE Use_Debug_Libraries 0

@@ -51,7 +51,7 @@
 # ADD BASE LIB32 /nologo

 # ADD LIB32 /nologo

 

-!ELSEIF  "$(CFG)" == "mbedtls - Win32 Debug"
+!ELSEIF  "$(CFG)" == "mbedtls - Win32 Debug"

 

 # PROP BASE Use_MFC 0

 # PROP BASE Use_Debug_Libraries 1

@@ -78,8 +78,8 @@
 

 # Begin Target

 

-# Name "mbedtls - Win32 Release"
-# Name "mbedtls - Win32 Debug"
+# Name "mbedtls - Win32 Release"

+# Name "mbedtls - Win32 Debug"

 # Begin Group "Source Files"

 

 # PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"