bullhead: update kernel prebuilt[ DO NOT MERGE ]
am: a27f46d788  -s ours

Change-Id: Ibe47ef05d264edb3916c685fc08ed10b9042f46c
tree: cccbe2f0dc8d0903c71cb1e8f3ea13c0d0fe7a29
  1. Image.gz-dtb