dt-bindings: Add vendor prefix for Starry

>From their website:
    http://www.b001.com.cn/



Starry appears to be a company involved in LCD panels and related
components.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>