yy3588: fix eDP video port and timing, document panel requirement#508

SuperKali merged 2 commits into

armbian:rk-6.1-rkr5.1armbian/linux-rockchip:rk-6.1-rkr5.1from

OpenSource-YYT:feat/youyeetoo-display-touchOpenSource-YYT/linux-rockchip:feat/youyeetoo-display-touchCopy head branch name to clipboard