ryu: update prebuilt kernel [ DO NOT MERGE ] am: 8bb30b923d
am: 1e001a0a6f  -s ours

Change-Id: Ia120b419b461c7fce8ab4b47d69678b4aae60339
tree: c7a2c76f7ffbf7ddf06bbce7b6f955f28fec3c9b
  1. Image.fit
  2. Image.fit.kasan
  3. push-kernel.sh