feat(cbmc): add initial support for CBMC

This commit adds initial, partial support for analysing RMM source code
with CBMC (https://www.cprover.org/cbmc/)

Signed-off-by: Shale Xiong <shale.xiong@arm.com>
Signed-off-by: Mate Toth-Pal <mate.toth-pal@arm.com>
Change-Id: I1c66838328782cb2db630769830809c5b0847a81
diff --git a/docs/getting_started/getting-started.rst b/docs/getting_started/getting-started.rst
index 88747c9..bbf744e 100644
--- a/docs/getting_started/getting-started.rst
+++ b/docs/getting_started/getting-started.rst
@@ -50,6 +50,7 @@
    "Graphviz dot",">v2.38.0","Documentation"
    "docutils",">v2.38.0","Documentation"
    "gcovr",">=v4.2","Tools(Coverage analysis)"
+   "CBMC",">=5.84.0","Tools(CBMC analysis)"
 
 .. _getting_started_toolchain:
 
@@ -225,6 +226,19 @@
     sudo mkdir /usr/local/share/Cppcheck/misra
     sudo cp -a <path to the misra rules file>/<file name> /usr/local/share/Cppcheck/misra/misra.rules
 
+############
+Install CBMC
+############
+
+.. note::
+
+    The installation of CBMC is an optional step. This is required only
+    if running source code analysis with CBMC.
+
+Follow the public documentation to install CBMC either from the official
+website https://www.cprover.org/cbmc/ or from the official github
+https://github.com/diffblue/cbmc
+
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 Performing an Initial Build
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