hammerhead: update prebuilt kernel
automerge: bde1b0d

* commit 'bde1b0d033d9406c1bbe1f39dbba0debc9a011c9':
  hammerhead: update prebuilt kernel
tree: 75e6521bd8b784301c5c7664f24ae254d240888d
  1. zImage-dtb