Revert "hammerhead: update prebuilt kernel [DO NOT MERGE]" am: 2ad63c3f92  -s ours am: 169fac909e
am: c48afbb468

* commit 'c48afbb46833d5c2bf9cf733e58784c4d83d5d34':
  Revert "hammerhead: update prebuilt kernel [DO NOT MERGE]"
tree: f0cd38b301d484d703b61094540fb09640bc2c43
  1. zImage-dtb