It was missed in 7cd6995946 when rebasing
the patches after 688b2cad7b added
VariableStandaloneMm.
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao Wu <hao.a.wu@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Dandan Bi <dandan.bi@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Dandan Bi <dandan.bi@intel.com>