1. Only HEX value was allowed by OEM_CAPSULE_FLAGS.
2. The value of offset PCD is only the offset not including base address in expression which is used by region offset and size.

Reviewed-by: Hesheng Chen <hesheng.chen@intel.com>
Signed-off-by: Yingke Liu <yingke.d.liu@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2-buildtools/code/trunk/BaseTools@2626 c2973edb-eda0-4c78-bc6a-9341b269661f