dt-bindings: arm: rockchip: Add ArmSoM Sige 5

Add devicetree binding for the ArmSoM Sige 5 board.

Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240903152308.13565-2-detlev.casanova@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Documentation/devicetree/bindings/arm/rockchip.yaml

@@ -49,6 +49,11 @@ properties:
               - anbernic,rg-arc-s
           - const: rockchip,rk3566
 
+      - description: ArmSoM Sige5 board
+        items:
+          - const: armsom,sige5
+          - const: rockchip,rk3576
+
       - description: ArmSoM Sige7 board
         items:
           - const: armsom,sige7