dt-bindings: soc: mediatek: pwrap: Add power-domains property

Currently, the DT bindings for Mediatek PMIC Wrapper is missing the
power-domains property, which is used in the MT8173 E1 evaluation board as
it needs USB power domain.

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

Author: adalessandro

Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml

@@ -98,6 +98,9 @@ properties:
       - const: pwrap
       - const: pwrap-bridge
 
+  power-domains:
+    maxItems: 1
+
   pmic:
     type: object
 
@@ -126,6 +129,18 @@ allOf:
         clock-names:
           minItems: 4
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mediatek,mt8173-pwrap
+    then:
+      properties:
+        power-domains: true
+    else:
+      properties:
+        power-domains: false
+
 additionalProperties: false
 
 examples: