SecurityPkg/Tcg: Add use case for new Perf macro

Add an example case for the usage of
PERF_CALLBACK_BEGIN/PERF_CALLBACK_END

Cc: Liming Gao <liming.gao@intel.com>
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: Liming Gao <liming.gao@intel.com>
Reviewed-by: Chao Zhang<chao.b.zhang@intel.com>

SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c

@@ -161,6 +161,8 @@ EndofPeiSignalNotifyCallBack (
 
   MeasuredHobData = NULL;
 
+  PERF_CALLBACK_BEGIN (&gEfiEndOfPeiSignalPpiGuid);
+
   //
   // Create a Guid hob to save all measured Fv
   //
@@ -186,6 +188,8 @@ EndofPeiSignalNotifyCallBack (
     CopyMem (&MeasuredHobData->MeasuredFvBuf[mMeasuredBaseFvIndex] , mMeasuredChildFvInfo, sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredChildFvIndex));
   }
 
+  PERF_CALLBACK_END (&gEfiEndOfPeiSignalPpiGuid);
+
   return EFI_SUCCESS;
 }