The Heap Guard feature wrapped SmmInternalFreePagesEx with
SmmInternalFreePagesExWithGuard but didn't add necessary
parameter check. This patch fixes this situation.
Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>