InOsEmuPkg: Fix warnings with GCC44 toolchain

Signed-off-by: jljusten

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11648 6f19259b-4bc3-4df7-8a09-765794883524

InOsEmuPkg/Include/Protocol/EmuPthreadThunk.h

@@ -2,7 +2,8 @@
   Emulator Thunk to abstract OS services from pure EFI code
 
   Copyright (c) 2010 - 2011, Apple Inc. All rights reserved.<BR>
-  
+  Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
+
   This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD License
   which accompanies this distribution.  The full text of the license may be found at
@@ -61,7 +62,7 @@ UINTN
 
 typedef 
 VOID *
-(*PTREAD_THUNK_THEAD_ENTRY) (
+(EFIAPI *PTREAD_THUNK_THEAD_ENTRY) (
   IN  VOID *Context
   );