shamu: update prebuilt kernel [ DO NOT MERGE ] am: 12232bcde7 am: b1677b2cf4 am: 28b951ea58  -s ours
am: df115022f5

Change-Id: I0b4d8765c9795e5f1e756c67f3de0cf66ddd2188
tree: c4870a495b3fa4000aedafbe3347fd21fb14ddac
  1. zImage-dtb