dt-bindings: clock: qcom: Add missing power-domains property

In order for the GCC votes on the GDSCs it provides to be propagated
to CX, CX needs to be declared as power domain of the GCC.

Document the missing power-domains property to that purpose.

Fixes: 95ba6820a6 ("dt-bindings: clock: qcom: document the Milos Global Clock Controller")
Signed-off-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260327-dt-fix-milos-eliza-gcc-power-domains-v1-1-f14a22c73fe9@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Documentation/devicetree/bindings/clock/qcom,milos-gcc.yaml

@@ -35,9 +35,14 @@ properties:
       - description: UFS Phy Tx symbol 0 clock source
       - description: USB3 Phy wrapper pipe clock source
 
+  power-domains:
+    items:
+      - description: CX domain
+
 required:
   - compatible
   - clocks
+  - power-domains
   - '#power-domain-cells'
 
 allOf:
@@ -48,6 +53,7 @@ unevaluatedProperties: false
 examples:
   - |
     #include <dt-bindings/clock/qcom,rpmh.h>
+    #include <dt-bindings/power/qcom,rpmhpd.h>
     clock-controller@100000 {
         compatible = "qcom,milos-gcc";
         reg = <0x00100000 0x1f4200>;
@@ -59,6 +65,7 @@ examples:
                  <&ufs_mem_phy 1>,
                  <&ufs_mem_phy 2>,
                  <&usb_1_qmpphy>;
+        power-domains = <&rpmhpd RPMHPD_CX>;
         #clock-cells = <1>;
         #reset-cells = <1>;
         #power-domain-cells = <1>;