Add 'recovery_key' in Google Binary Block (GBB) utility

src/platform/vboot_reference/vboot_firmware/include/gbb_header.h

 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  *
  * Data structure of Google Binary Block (GBB)
  */
 
 #ifndef VBOOT_REFERENCE_GBB_HEADER_H_
 #define VBOOT_REFERENCE_GBB_HEADER_H_
 
@@ skipping 17 matching lines @@
   uint16_t minor_version;   // see GBB_MINOR_VER
   uint32_t header_size;     // size of GBB header in bytes
   uint32_t reserved;
 
   uint32_t hwid_offset;     // HWID offset from header
   uint32_t hwid_size;       // HWID size in bytes
   uint32_t rootkey_offset;  // Root Key offset from header
   uint32_t rootkey_size;    // Root Key size in bytes
   uint32_t bmpfv_offset;    // BMP FV offset from header
   uint32_t bmpfv_size;      // BMP FV size in bytes
+  uint32_t recovery_key_offset;  // Recovery Key offset from header
+  uint32_t recovery_key_size;    // Recovery Key size in bytes
 
-  uint8_t  pad[88];         // to match GBB_HEADER_SIZE
+  uint8_t  pad[80];         // to match GBB_HEADER_SIZE
 } GoogleBinaryBlockHeader;
 
 #ifdef __cplusplus
 }
 #endif  // __cplusplus
 
 #endif  /* VBOOT_REFERENCE_GBB_HEADER_H_ */
-