Enable DP alt mode
(just to so we have a but to track the kernel side):
Needs to go on top of !205 (closed) with https://source.puri.sm/Librem5/firmware-tps6598x-nonfree and uboot-imx!36 (merged)
(just to so we have a but to track the kernel side):
Needs to go on top of !205 (closed) with https://source.puri.sm/Librem5/firmware-tps6598x-nonfree and uboot-imx!36 (merged)