arm64: dts: renesas: Add support for Advantech idk-1110wr LVDS panel

This patch adds support for Advantech idk-1110wr LVDS panel.
The HiHope RZ/G2[MN] is advertised as compatible with panel
idk-1110wr from Advantech, however the panel isn't sold alongside
the board.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/1570029619-43238-10-git-send-email-biju.das@bp.renesas.com


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