SecurityPkg/SmmTcg2PhysicalPresenceLib: Fix coding style issue

Boolean values do not need to use explicit comparisons
to TRUE or FALSE.

Cc: Chao Zhang <chao.b.zhang@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by:Chao Zhang <chao.b.zhang@intel.com>
(cherry picked from commit 3d1872b780)

SecurityPkg/Library/SmmTcg2PhysicalPresenceLib/SmmTcg2PhysicalPresenceLib.c

@@ -341,7 +341,7 @@ Tcg2PhysicalPresenceLibGetUserConfirmationStatusFunction (
       break;
 
     default:
-      if (mIsTcg2PPVerLowerThan_1_3 == FALSE) {
+      if (!mIsTcg2PPVerLowerThan_1_3) {
         if (OperationRequest < TCG2_PHYSICAL_PRESENCE_VENDOR_SPECIFIC_OPERATION) {
           //
           // TCG2 PP1.3 spec defined operations that are reserved or un-implemented