am 3b499d2e: (-s ours) am 4f478808: (-s ours) hammerhead: update prebuilt kernel

* commit '3b499d2e8e7c1f1158ea27671aba5903dfdf46c3':
tree: b74aa191ac219c45a56f93a9e56a4d76bd396e4f
  1. zImage-dtb