Add PlatformFvbLibNull instance of PlatformFvbLib.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9314 6f19259b-4bc3-4df7-8a09-765794883524

OvmfPkg/Library/PlatformFvbLibNull/PlatformFvbLibNull.c

@@ -0,0 +1,36 @@
+/** @file
+  NULL PlatformFvbLib library instance
+
+  Copyright (c) 2009, 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.
+
+**/
+
+#include "PiDxe.h"
+#include <Library/PlatformFvbLib.h>
+
+
+/**
+  This function will be called following a call to the
+  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL Write function.
+
+  @param[in] This     EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL instance.
+  @param[in] Lba      The starting logical block index to written to.
+
+**/
+VOID
+EFIAPI
+PlatformFvbDataWritten (
+  IN CONST  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *This,
+  IN        EFI_LBA                             Lba
+  )
+{
+}
+
+