docs(errata_abi): document the errata abi changes

Updated errata ABI feature enable flag and the errata non-arm
interconnect based flag, the default values for when the
feature is not enabled.

Change-Id: Ieb2144a1bc38f4ed684fda8280842a18964ba148
Signed-off-by: Sona Mathew <SonaRebecca.Mathew@arm.com>

docs/getting_started/build-options.rst

@@ -1132,6 +1132,13 @@ Common build options
   means platform hook won't be checked and CMOs will always be performed when
   related functions are called.
 
+- ``ERRATA_ABI_SUPPORT``: Boolean option to enable support for Errata management
+  firmware interface for the BL31 image. By default its disabled (``0``).
+
+- ``ERRATA_NON_ARM_INTERCONNECT``: Boolean option to enable support for the
+  errata mitigation for platforms with a non-arm interconnect using the errata
+  ABI. By default its disabled (``0``).
+
 GICv3 driver options
 --------------------
 

docs/global_substitutions.txt

@@ -69,3 +69,4 @@
 .. |UEFI| replace:: :term:`UEFI`
 .. |WDOG| replace:: :term:`WDOG`
 .. |XLAT| replace:: :term:`XLAT`
+.. |ERRATA_ABI| replace:: :term:`ERRATA_ABI`

docs/glossary.rst

@@ -70,6 +70,9 @@ You can find additional definitions in the `Arm Glossary`_.
    EHF
       Exception Handling Framework
 
+   ERRATA_ABI
+      Errata management firmware interface
+
    FCONF
       Firmware Configuration Framework