am 734c4211: (-s ours) hammerhead: update prebuilt kernel

* commit '734c4211550d7d1d37f64409e89f07ba2eb59ce5':
  hammerhead: update prebuilt kernel
tree: a10d09219f52cb6f4a49b6d5a83d600e399e7d27
  1. zImage-dtb