dt-bindings: mfd: syscon: Add nuvoton,ma35d1-sys compatible

Add Nuvoton ma35d1 system registers compatible.
Signed-off-by: Jacky Huang <ychuang3@nuvoton.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230328021912.177301-6-ychuang570808@gmail.com

Documentation/devicetree/bindings/mfd/syscon.yaml

@@ -56,6 +56,7 @@ properties:
               - microchip,lan966x-cpu-syscon
               - microchip,sparx5-cpu-syscon
               - mstar,msc313-pmsleep
+              - nuvoton,ma35d1-sys
               - nuvoton,wpcm450-shm
               - rockchip,px30-qos
               - rockchip,rk3036-qos