Fix GCC build fail issue for MdeModulePkg and NetworkPkg.

Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Ouyang Qian <qian.ouyang@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14007 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Universal/Network/MnpDxe/MnpDriver.c

@@ -37,10 +37,11 @@ EFI_DRIVER_BINDING_PROTOCOL gMnpDriverBinding = {
 
 **/
 EFI_STATUS
+EFIAPI
 MnpDestroyServiceDataEntry (
   IN LIST_ENTRY         *Entry,
   IN VOID               *Context
-)
+  )
 {
   MNP_SERVICE_DATA              *MnpServiceData;
   
@@ -59,10 +60,11 @@ MnpDestroyServiceDataEntry (
 
 **/
 EFI_STATUS
+EFIAPI
 MnpDestroyServiceChildEntry (
   IN LIST_ENTRY         *Entry,
   IN VOID               *Context
-)
+  )
 {
   MNP_SERVICE_DATA              *MnpServiceData;