bullhead: update kernel prebuilt[ DO NOT MERGE ] am: a27f46d788  -s ours
am: 773bb10c4f

Change-Id: I87d8041051b075d670b0dd711304ad1d80906cc2
tree: cccbe2f0dc8d0903c71cb1e8f3ea13c0d0fe7a29
  1. Image.gz-dtb