hikey-kernel: Update prebuilt kernel to 469ab8e
am: 812e3d9

* commit '812e3d94a0a56081cde661c045710f276a9afbb2':
  hikey-kernel: Update prebuilt kernel to 469ab8e

Change-Id: Idded7d7759252327c0113b2f31f6678e98b11a6c
tree: cb8a54ac9761bd9462a8ebc363ba7555a001aada
  1. hi6220-hikey.dtb
  2. Image