Merge \\\"gfx: support external display\\\" into cw-e-dev am: e3e49cc873 am: 56b8c3132c
am: 59b023a4d9

Change-Id: Ica96bad83af2ddcc740e85a8f9e47f0080787f4e
tree: f838cfeacf6127193d9589844f651f69fc7f1a30
  1. merrifield/
  2. moorefield_hdmi/