shamu: update prebuilt kernel [ DO NOT MERGE ] am: 12232bcde7 am: b1677b2cf4 am: 28b951ea58  -s ours am: df115022f5 am: f6b8149569
am: 8874f7bcc3

Change-Id: I9b6f90c35c118a2fa39deff4b8ffcf82099530d3
tree: 098d982c73e3b63c290656b09e4907afaf9fd79c
  1. zImage-dtb