Move old vkernel code out of vboot_firmware.

vkernel/load_kernel_fw.c

 /* 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.
  *
  * Functions for loading a kernel from disk.
  * (Firmware portion)
  */
 
 #include "load_kernel_fw.h"
 
 #include "boot_device.h"
 #include "cgptlib.h"
 #include "kernel_image_fw.h"
 #include "rollback_index.h"
 #include "utility.h"
 #include "vboot_kernel.h"
 
 #define GPT_ENTRIES_SIZE 16384 /* Bytes to read for GPT entries */
 
 #ifdef PRINT_DEBUG_INFO
 // TODO: for testing
 #include <stdio.h>
 #include <inttypes.h>  /* For PRIu64 macro */
 #include "cgptlib_internal.h"
 #endif
 
 
 #define KBUF_SIZE 65536  /* Bytes to read at start of kernel partition */
 
-int LoadKernel(LoadKernelParams* params) {
+int LoadKernelOld(LoadKernelParams* params) {
 
   GptData gpt;
   uint64_t part_start, part_size;
   uint64_t blba = params->bytes_per_lba;
   uint8_t* kbuf = NULL;
   uint64_t kbuf_sectors;
   int found_partition = 0;
   int good_partition = -1;
   uint16_t tpm_kernel_key_version, tpm_kernel_version;
   uint16_t lowest_kernel_key_version = 0xFFFF;
@@ skipping 201 matching lines @@
     /* Success! */
     return LOAD_KERNEL_SUCCESS;
   }
 
   /* Handle error cases */
   if (found_partition)
     return LOAD_KERNEL_INVALID;
   else
     return LOAD_KERNEL_NOT_FOUND;
 }