1. Removed AsmSwitchStackAndBackingStore from BaseLib.h

2. Modified SwitchStack definition update to MWG 0.60e.
3. Added BaseLib/Ipf/InternalSwitchStack.c and removed BaseLib/Ipf/Non-existing.c
4. Updated any references of AsmSwitchStackAndBackingStore to SwichStack on IPF.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2499 6f19259b-4bc3-4df7-8a09-765794883524

EdkModulePkg/Core/Pei/Ipf/Stack.c

@@ -1,7 +1,7 @@
 /** @file
   PeiSwitchStacks() function for PEI dispatcher.
 
-  Copyright (c) 2006, Intel Corporation<BR>
+  Copyright (c) 2006 - 2007, Intel Corporation<BR>
   All rights reserved. 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
@@ -48,7 +48,7 @@ PeiSwitchStacks (
   IN      VOID                      *NewBsp
   )
 {
-  AsmSwitchStackAndBackingStore (
+  SwitchStack (
     EntryPoint,
     Context1,
     Context2,