Import Library Class from original MDE package. Also I added the EFI_PEI_CORE_ENTRY_POINT definition in PiPeiCis.h.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2677 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Include/Library/CpuLib.h

@@ -0,0 +1,20 @@
+/** @file
+  Library that provides processor specific library services
+
+  Copyright (c) 2006, Intel Corporation                                                         
+  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        
+  http://opensource.org/licenses/bsd-license.php                                            
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+  Module Name:  CpuLib.h
+
+**/
+
+#ifndef __CPU_LIB_H__
+#define __CPU_LIB_H__
+
+#endif