am a33b6683: (-s ours) am 7a39e350: (-s ours) hammerhead: update prebuilt kernel

* commit 'a33b6683b6a55a8fba3138e15799d385e0824e9f':
tree: b74aa191ac219c45a56f93a9e56a4d76bd396e4f
  1. zImage-dtb