ryu: update kernel prebuilt[ DO NOT MERGE ] am: 0564786d34  -s ours am: e941b35758
am: 91b3e52b78

Change-Id: I672b342060bb7b8c22fc5508e4fb4b9cabdbd0ad
tree: 81a83ec6c147dd6701d7e5464cbb70abd373fa1d
  1. Image.fit
  2. Image.fit.kasan
  3. push-kernel.sh