dt-bindings: pinctrl: samsung: google,gs101-pinctrl needs a clock

The pin controller on Google Tensor gs101 requires a bus clock for
register access to work. Add it.

Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20240426-samsung-pinctrl-busclock-v3-1-adb8664b8a7e@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Author: andred

Documentation/devicetree/bindings/pinctrl/samsung,pinctrl.yaml

@@ -73,6 +73,13 @@ properties:
     minItems: 1
     maxItems: 2
 
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: pclk
+
   wakeup-interrupt-controller:
     $ref: samsung,pinctrl-wakeup-interrupt.yaml
 
@@ -120,6 +127,20 @@ required:
 
 allOf:
   - $ref: pinctrl.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: google,gs101-pinctrl
+    then:
+      required:
+        - clocks
+        - clock-names
+    else:
+      properties:
+        clocks: false
+        clock-names: false
+
   - if:
       properties:
         compatible: