Fix FSP GCC error on FspApiCallingCheck().

Add comment for ASM.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: "Yao, Jiewen" <Jiewen.Yao@intel.com> 
Reviewed-by: "Mudusuru, Giri P" <giri.p.mudusuru@intel.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17281 6f19259b-4bc3-4df7-8a09-765794883524
2 files changed