arm64: dts: renesas: Add panel overlay for Draak and Ebisu boards

The Draak and Ebisu boards support an optional LVDS panel. One
compatible panel is the Mitsubishi AA104XD12. Add a corresponding DT
overlay.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Link: https://lore.kernel.org/r/20211229193135.28767-4-laurent.pinchart+renesas@ideasonboard.com


Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>