Enable buffer type when process some expression opcode which support buffer type.

Signed-off-by: ydong10
Reviewed-by: lgao4

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12739 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Universal/SetupBrowserDxe/Setup.h

@@ -198,6 +198,8 @@ typedef struct {
 
 typedef struct {
   UINT8               Type;
+  UINT8               *Buffer;
+  UINT16              BufferLen;
   EFI_IFR_TYPE_VALUE  Value;
 } EFI_HII_VALUE;