hikey: Use Image-dtb instead of Image am: 7329c0c06d
am: 28d3e12b0b

* commit '28d3e12b0babc0c28d45739ade9bb4eb3546aa72':
  hikey: Use Image-dtb instead of Image

Change-Id: Id0d407fcc8dd02d7cc2f324bcbe51bc949090d37