arm64: dts: meson-gxbb: add support for Videostrong KII Pro

This patch adds support for the Videostrong KII Pro tv box which is
based on the gxbb-p201 reference design

Device specifications:
- SOC: Amlogic S905
- RAM: 2GB DDR3
- Storage: 16GB
- Connectivity:
	- 10/100M Ethernet (IC Plus IP101GR)
	- 802.11 b/g/n/ac Wi-Fi (Ampak AP6335 BT/WIFI combo)
	- Bluetooth 4.0 (Ampak AP6335 BT/WIFI combo)
- Video out: HDMI 2.0 up to 4K @ 60Hz, and 3.5mm AV (composite video) jack
- Audio out: HDMI, AV (stereo audio) and optical S/PDIF
- Tuner: AVL6862 DVB-C/T/T2 + DVB-S/S2 demod and Rafael Micro R848 tuner
- Ports:
	- x1 micro SD card slot up to 32GB
	- 4x USB 2.0 host ports
- Misc:
    - Power button and LED, IR receiver

Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Mohammad Rasim <mohammad.rasim96@gmail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>