dt-bindings: arm: sunxi: add Neutis N5H3

Adds bindings for the new Emlid Neutis N5H3 board.
Signed-off-by: Georgii Staroselskii <georgii.staroselskii@emlid.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Documentation/devicetree/bindings/arm/sunxi.yaml

@@ -470,6 +470,12 @@ properties:
           - const: emlid,neutis-n5
           - const: allwinner,sun50i-h5
 
+      - description: Emlid Neutis N5H3 Developper Board
+        items:
+          - const: emlid,neutis-n5h3-devboard
+          - const: emlid,neutis-n5h3
+          - const: allwinner,sun8i-h3
+
       - description: NextThing Co. CHIP
         items:
           - const: nextthing,chip