make_dev_ssh.sh should handle image C as well

scripts/image_signing/make_dev_ssd.sh

 #!/bin/sh
 #
 # 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.
 #
 # This script can change key (usually developer keys) and kernel config
 # of a kernels on SSD.
 
 SCRIPT_BASE="$(dirname "$0")"
@@ skipping 73 matching lines @@
 
 # Prints a more friendly name from kernel index number
 cros_kernel_name() {
   case $1 in
     2)
       echo "Kernel A"
       ;;
     4)
       echo "Kernel B"
       ;;
+    6)
+      echo "Kernel C"
+      ;;
     *)
       err_die "unknown kernel index: $1"
   esac
 }
 
 # Resigns a kernel on SSD or image.
 resign_ssd_kernel() {
   # bs=512 is the fixed block size for dd and cgpt
   local bs=512
   local ssd_device="$1"
 
   # reasonable size for current kernel partition
   local min_kernel_size=32000
   local max_kernel_size=65536
   local resigned_kernels=0
 
-  for kernel_index in 2 4; do
+  for kernel_index in 2 4 6; do
     local old_blob="$(make_temp_file)"
     local new_blob="$(make_temp_file)"
     local name="$(cros_kernel_name $kernel_index)"
     local rootfs_index="$(($kernel_index + 1))"
 
     debug_msg "Probing $name information"
     local offset size
     offset="$(partoffset "$ssd_device" "$kernel_index")" ||
       err_die "Failed to get partition $kernel_index offset from $ssd_device"
     size="$(partsize "$ssd_device" "$kernel_index")" ||
@@ skipping 162 matching lines @@
   debug_msg "Complete."
   if [ $num_signed -gt 0 -a $num_signed -le 2 ]; then
     # signed 1 or two kernels
     echo "Successfully re-signed $num_signed kernel(s) on device $FLAGS_image".
   else
     err_die "Failed re-signing kernels."
   fi
 }
 
 main