REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3705 FSP 2.3 has updated FSP_INFO_HEADER to support ExtendedImageRevision and SplitFspBin.py needs to support it. Also updated script to display integer value basing on length. Cc: Maurice Ma <maurice.ma@intel.com> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com> Cc: Star Zeng <star.zeng@intel.com> Signed-off-by: Chasel Chiu <chasel.chiu@intel.com> Reviewed-by: Maurice Ma <maurice.ma@intel.com> Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>