ARM: dts: msm: add a new panel driver for sdm660 QRD

nt36850 wqhd command panel will be used for sdm660 QRD,
so add a new panel driver for it.

Change-Id: I94a76aa3972978f8fb6ebca96bd452fec827b355
Signed-off-by: Ray Zhang <rayz@codeaurora.org>
Signed-off-by: Yahui Wang <yahuiw@codeaurora.org>