arm64: dts: rockchip: Properly define the type C connector on rk3399-orangepi

Tested:
- USB3 Gigabit adapter
- USB2 mass storage

The wiring is the same as the pinebook pro according to the schematics,
thus this patch is heavily based on its dts.

Signed-off-by: Alexis Ballier <aballier@gentoo.org>
Cc: devicetree@vger.kernel.org
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/20201022113532.18470-1-aballier@gentoo.org


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