ryu: update kernel prebuilt am: 1f719a46d7
am: 34987c053c  -s ours

Change-Id: Idcb0d2364a386267f6ee32c5f18e8b7322f81686
tree: ffcc0a5fc717b13f0dd0cbcef9c3393c973dfa75
  1. Image.fit
  2. Image.fit.kasan
  3. push-kernel.sh