When CSM uses EFI_SEGMENT and EFI_OFFSET to call CSM16 function, some CSM16 use es...

When CSM uses EFI_SEGMENT and EFI_OFFSET to call CSM16 function, some CSM16 use es:[offset + 0xabcd] to get data passed from CSM32, offset + 0xabcd could exceed 0xFFFF which is invalid in real mode. So added NORMALIZE_EFI_SEGMENT and  NORMALIZE_EFI_OFFSET to keep offset as small as possible to avoid this issue during CSM16 function call.

Signed-off-by: li-elvin
Reviewed-by: rsun3
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13074 6f19259b-4bc3-4df7-8a09-765794883524