bullhead: update prebuilt kernel [ DO NOT MERGE ] am: dc66ef5645  -s ours am: 4584c0628f
am: 4437813d1a

Change-Id: I822a88e648c01226ab2c07dada450960d739c08b
tree: 3440299988fed57705a360a407a9b7fdc1376801
  1. Image.gz-dtb