arm64: dts: rockchip: Add Rotation Property for OGA Panel

Add rotation property for Odroid Go Advance panel to note that it is
rotated 270 degrees. Rotation affects DRM connector after this patch:

https://cgit.freedesktop.org/drm/drm/commit/drivers/gpu/drm/panel/panel-elida-kd35t133.c?id=610d9c311b1387f8c4ac602fee1f2a1cb0508707Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Link: https://lore.kernel.org/r/20210614161849.332-1-macroalpha82@gmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts

@@ -264,6 +264,7 @@ panel@0 {
 		backlight = <&backlight>;
 		iovcc-supply = <&vcc_lcd>;
 		reset-gpios = <&gpio3 RK_PC0 GPIO_ACTIVE_LOW>;
+		rotation = <270>;
 		vdd-supply = <&vcc_lcd>;
 
 		port {