flounder: update kernel prebuilt (DO NOT MERGE) am: 721c2986ad  -s ours am: 26599f209f
am: 7ef4709933

* commit '7ef470993377f49752d73193ffa79372580cfe7e':
  flounder: update kernel prebuilt (DO NOT MERGE)
tree: 0eee58f35e731a503a1544792264cc3383393b35
  1. Image.gz-dtb