hikey: Use Image-dtb instead of Image am: d6681b52e2
am: f9e16c8c73

* commit 'f9e16c8c734f54d0be3cdd70431e889a81e13177':
  hikey: Use Image-dtb instead of Image

Change-Id: I98893c484ef238599f5fc23e02eceb34b9cf62d1