hammerhead: update prebuilt kernel
automerge: a96ab8e

* commit 'a96ab8e1686dfb6f6479c7f8ba82961bfe2bc577':
  hammerhead: update prebuilt kernel
tree: d75dfcf9b7a2a77b9dcb771944e7922a4116aae7
  1. zImage-dtb