dt-bindings: arm: Add NanoPi R1S H5

Add the bindings for NanoPi R1S H5 board.
Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20210516163523.9484-3-amadeus@jmu.edu.cn

Documentation/devicetree/bindings/arm/sunxi.yaml

@@ -275,6 +275,11 @@ properties:
           - const: friendlyarm,nanopi-r1
           - const: allwinner,sun8i-h3
 
+      - description: FriendlyARM NanoPi R1S H5
+        items:
+          - const: friendlyarm,nanopi-r1s-h5
+          - const: allwinner,sun50i-h5
+
       - description: FriendlyARM ZeroPi
         items:
           - const: friendlyarm,zeropi