am ea7acfa6: (-s ours) am 631bd855: (-s ours) Revert "hammerhead: update prebuilt kernel"

* commit 'ea7acfa69c59a95eb7a95124998fee768dbb6f15':
tree: b74aa191ac219c45a56f93a9e56a4d76bd396e4f
  1. zImage-dtb