dt-bindings: add bindings doc for ZTE VOU display controller

It adds initial bindings doc for ZTE VOU display controller.  HDMI is
the only supported output device right now.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Shawn Guo 2016-09-23 13:40:08 +08:00 • committed by Shawn Guo
commit f78dd2c210