am 9b1f00c3: (-s ours) am d80393b4: (-s ours) hammerhead: update prebuilt kernel

* commit '9b1f00c36c03426e522015e330ad35d6df461835':
tree: b74aa191ac219c45a56f93a9e56a4d76bd396e4f
  1. zImage-dtb