CorebootModulePkg: Add a library to parse platform specific info.

Update CbSupportPei to consume the new library, so platform could provide
platform specific library instance to parse platform specif info.
And add a NULL library instance to pass build.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: gdong1 <guo.dong@intel.com>
Reviewed-by: Maurice Ma <maurice.ma@intel.com>

CorebootModulePkg/Include/Library/CbPlatformSupportLib.h

@@ -0,0 +1,34 @@
+/** @file
+  Coreboot Platform Support library. Platform can provide an implementation of this
+  library class to provide hooks that may be required for some type of 
+  platform features.
+
+Copyright (c) 2016, 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 that 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.
+
+**/
+
+#ifndef __CB_PLATFORM_SUPPORT_LIB__
+#define __CB_PLATFORM_SUPPORT_LIB__
+
+/**
+  Parse platform specific information from coreboot. 
+
+  @retval RETURN_SUCCESS       The platform specific coreboot support succeeded.
+  @retval RETURN_DEVICE_ERROR  The platform specific coreboot support could not be completed.
+ 
+**/
+EFI_STATUS
+EFIAPI
+CbParsePlatformInfo (
+  VOID
+  );
+
+#endif // __CB_PLATFORM_SUPPORT_LIB__
+