ryu: update kernel prebuilt[ DO NOT MERGE ] am: a4f6b68f99  -s ours am: 993e6eaf9f am: d10aab9ea5
am: 5f1ecebccc

Change-Id: Ib4799789a2c6a0a6f0431ed90204467be4962e75
tree: 2bfc6ab85ebaa93b23d923cb4e1dcc1e0e3f4ad4
  1. Image.fit
  2. Image.fit.kasan
  3. push-kernel.sh