PEL: Support MfgSeverity & MfgAction flags PEL reg fields

This is specifically for manufacturing mode.
Look for mfgSeverity and mfgAction flags being set in incoming PELs and
if it is then check for dbus property for QuiesceOnHwError and if it is
found then override the severity value with mfg value.

Signed-off-by: Sumit Kumar <sumit_kumar@in.ibm.com>
Change-Id: Icd590b0e2732df8aa9c2935078528dda8fd4f996
diff --git a/test/openpower-pels/mocks.hpp b/test/openpower-pels/mocks.hpp
index 4196ee7..1116988 100644
--- a/test/openpower-pels/mocks.hpp
+++ b/test/openpower-pels/mocks.hpp
@@ -44,6 +44,7 @@
     MOCK_METHOD(void, setFunctional, (const std::string&, bool),
                 (const override));
     MOCK_METHOD(std::vector<uint8_t>, getSystemIMKeyword, (), (const override));
+    MOCK_METHOD(bool, getQuiesceOnError, (), (const override));
 
     void changeHostState(bool newState)
     {