The previous commit: MdeModulePkg/SmmLockBoxLib: Support LockBox enlarge in UpdateLockBox() adds the support to enlarge a LockBox when using the LockBoxLib API UpdateLockBox(). This commit is to sync the API description comment of UpdateLockBox() with its counterparts in MdeModulePkg. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Hao Wu <hao.a.wu@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Ray Ni <ray.ni@intel.com>