shamu: update prebuilt kernel [ DO NOT MERGE ] am: a25104c70f am: 3c1721e873 am: 35299e2764 -s ours am: e6bc91e75c am: 063369190e am: 1669300d52 Change-Id: I74856cbb4be7fe22e47b6b0ca11fdd007aec4a49