Add 'prioritize' command to cgpt tool.

firmware/lib/cgptlib/include/gpt.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.
  *
  * Defines EFI related structure. See more details in EFI 2.3 spec.
  *
  * To download EFI standard, please visit UEFI homepage:
  *    http://www.uefi.org/
  */
 #ifndef VBOOT_REFERENCE_CGPTLIB_GPT_H_
@@ skipping 44 matching lines @@
       uint8_t clock_seq_high_and_reserved;
       uint8_t clock_seq_low;
       uint8_t node[UUID_NODE_LEN];
     } Uuid;
     uint8_t raw[GUID_SIZE];
   } u;
 } __attribute__((packed)) Guid;
 
 #define GUID_EXPECTED_SIZE GUID_SIZE
 
-/* Some constant values */
-extern const Guid guid_unused;
-extern const Guid guid_chromeos_kernel;
-
 /* GPT header defines how many partitions exist on a drive and sectors managed.
  * For every drive device, there are 2 headers, primary and secondary.
  * Most of fields are duplicated except my_lba and entries_lba.
  *
  * You may find more details in chapter 5 of EFI standard.
  */
 typedef struct {
   char signature[8];
   uint32_t revision;
   uint32_t size;
@@ skipping 32 matching lines @@
   } attrs;
   uint16_t name[36];                    /* UTF-16 encoded partition name */
   /* Remainder of entry is reserved and should be 0 */
 } __attribute__((packed)) GptEntry;
 
 #define GPTENTRY_EXPECTED_SIZE 128
 
 __pragma(pack(pop)) /* Support packing for MSVC. */
 
 #endif  /* VBOOT_REFERENCE_CGPTLIB_GPT_H_ */