dt-bindings: arm: amlogic: add support for the Minix Neo X8-H Plus

The Minix Neo X8-H Plus is a commercial Android device based on the
Amlogic N200 reference design using the S812-H chipset. Specs:

2GB DDR3 RAM
16GB eMMC storage
10/100/1000 Ethernet using Realtek RTL8211F
802.11 a/b/g/n/ac + BT 4.0 sdio wireless module (AP6335)
1x blue colour LED to indicate power
1x power button
1x reset button
HDMI 1.4 (4k@30p) video
2-channel audio input/output on 2x 3.5mm jacks
Optical S/PDIF audio output
3x USB 2.0 ports
1x USB OTG port
1x SD card slot
UART pins (internal)
IR Sensor

Author: amondit

Documentation/devicetree/bindings/arm/amlogic.yaml

@@ -40,6 +40,7 @@ properties:
       - description: Boards with the Amlogic Meson8m2 SoC
         items:
           - enum:
+              - minix,x8-h-plus
               - tronsmart,mxiii
               - tronsmart,mxiii-plus
           - const: amlogic,meson8m2