dt-bindings: interrupt-controller: fsl,intmux: Include power-domains support

Enable the power-domains property for the fsl,intmux node. This addition
accommodates i.MX8QXP, i.MX8QM, and i.MX8DXL, which utilize the
power-domains property. Incorporating this eliminates DTB_CHECK errors in
relevant device tree source files.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240229200911.712572-1-Frank.Li@nxp.comSigned-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/interrupt-controller/fsl,intmux.yaml

@@ -37,6 +37,9 @@ properties:
   clock-names:
     const: ipg
 
+  power-domains:
+    maxItems: 1
+
 required:
   - compatible
   - reg