dt-bindings: mailbox: qcom,apcs-kpss-global: correct SDX55 clocks

SDX55 and SDX65 DTS takes clocks in a bit different order.  Adjust
bindings to the DTS.

Fixes: 0d17014e ("dt-bindings: mailbox: Add binding for SDX55 APCS")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230322173559.809805-1-krzysztof.kozlowski@linaro.org

Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml

@@ -97,14 +97,14 @@ allOf:
       properties:
         clocks:
           items:
+            - description: reference clock
             - description: primary pll parent of the clock driver
             - description: auxiliary parent
-            - description: reference clock
         clock-names:
           items:
+            - const: ref
             - const: pll
             - const: aux
-            - const: ref
   - if:
       properties:
         compatible: