Add XBGR8888 to rockchip supported formats.

BUG=chromium:639111,b:29430506
TEST=Tested on minnie after changing chrome primary buffer format to XBGR

Change-Id: I2d1ba8711e9f15efa0d728948dba58c18ef5b918
Reviewed-on: https://chromium-review.googlesource.com/366900
Commit-Ready: Daniele Castagna <dcastagna@chromium.org>
Tested-by: St├ęphane Marchesin <marcheu@chromium.org>
Reviewed-by: David Reveman <reveman@chromium.org>
Reviewed-by: St├ęphane Marchesin <marcheu@chromium.org>
1 file changed