hammerhead: update prebuilt kernel
automerge: a5b02ae

* commit 'a5b02aef6d7c5ade259d59b1ebd4454f57d79f48':
  hammerhead: update prebuilt kernel
tree: 7888b4b1925700747ecd04e4aa8e0e45671d073f
  1. zImage-dtb