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=610d9c311b1387f8c4ac602fee1f2a1cb0508707



Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Link: https://lore.kernel.org/r/20210614161849.332-1-macroalpha82@gmail.com


Signed-off-by: Heiko Stuebner <heiko@sntech.de>