ryu: update prebuilt kernel [ DO NOT MERGE ] am: 0e1a6764a6
am: 12bf621bfe  -s ours

Change-Id: Ib053b49048bb7dc22575315ec68fa404b4bf5101
tree: 109fe77d5ee7eec0cdb187a29c3a3d9572f5d276
  1. Image.fit
  2. Image.fit.kasan
  3. push-kernel.sh