gpu:drm:panel-lvds: Add sel6/8 gpio support
The sel6/8 gpio is needed to toggle between 18bpp and 24bpp. This allow to specify the gpio in the devicetree.
(cherry picked from commit b6581905)
The sel6/8 gpio is needed to toggle between 18bpp and 24bpp. This allow to specify the gpio in the devicetree.
(cherry picked from commit b6581905)