arm64: dts: rockchip: Add Engicam C.TOUCH 2.0

arm64: dts: rockchip: Add Engicam C.TOUCH 2.0

Engicam C.TOUCH 2.0 is an EDIMM compliant general purpose
carrier board with capacitive touch interface.

Genaral features:
- TFT 10.1" industrial, 1280x800 LVDS display
- Ethernet 10/100
- Wifi/BT
- USB Type A/OTG
- Audio Out
- CAN
- LVDS panel connector

SOM's like PX30.Core needs to mount on top of this Carrier board
for creating complete PX30.Core C.TOUCH 2.0 board.

Add support for it.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Link: https://lore.kernel.org/r/20200929083217.25406-7-jagan@amarulasolutions.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>