2. Added SwitchIplStacks() function to DxeIplPeim to encapsulate arch details on stack switching.
3. Added PeiSwitchStacks() function to PeiMain to encapsulate arch details on stack switching.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1328 6f19259b-4bc3-4df7-8a09-765794883524