Update capsule pei module to pass IPF build.

Signed-off-by: li-elvin
Reviewed-by: lgao4


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12280 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Universal/CapsulePei/Capsule.h

@@ -38,6 +38,8 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include <IndustryStandard/PeImage.h>
 #include "Common/CommonHeader.h"
 
+#ifdef MDE_CPU_IA32 
+
 #pragma pack(1)
 
 //
@@ -99,3 +101,5 @@ EFI_STATUS
   );
 
 #endif
+
+#endif