am f09d974e: hammerhead: update releasetools.py for different bootloader layout
am f09d974e: hammerhead: update releasetools.py for different bootloader layout

* commit 'f09d974e9d8da5f6581ec6a7960dc52b545efa7e':
  hammerhead: update releasetools.py for different bootloader layout

maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead