DynamicTablesPkg: Fix IA32 compilation errors

Add the support for X64 compilation to the CI.
- Fix the signed and unsigned variable comparision.
  warning C4018: '>': signed/unsigned mismatch
- Fix the NOOPT build error for IA32 by replacing
  64bit shift operator with LShiftU64.

Cc: Pierre Gondois <pierre.gondois@arm.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Abdul Lateef Attar <AbdulLateef.Attar@amd.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>

DynamicTablesPkg/Library/Common/TableHelperLib/ConfigurationManagerObjectParser.c

@@ -1130,7 +1130,7 @@ ParseCmObjDesc (
         &RemainingSize,
         1
         );
-      if ((RemainingSize > CmObjDesc->Size) ||
+      if ((RemainingSize > (INTN)CmObjDesc->Size) ||
           (RemainingSize < 0))
       {
         ASSERT (0);