am e9a72963: (-s ours) am f16b3bf4: (-s ours) hammerhead: update prebuilt kernel

* commit 'e9a72963505a19974af8c9d3324a60852570c670':
tree: b74aa191ac219c45a56f93a9e56a4d76bd396e4f
  1. zImage-dtb