bullhead: update prebuilt kernel [ DO NOT MERGE ANYWHERE ] am: 5b795f3956  -s ours am: e5da47b2fa  -s ours am: ea9835acb8  -s ours
am: b9010788ec  -s ours

Change-Id: I657a72a05c88288985ede2dc2b6b05bc201a31b5
tree: 618d10c7794b743597b375dd32d815a25a3b73a7
  1. Image.gz-dtb