arm64: dts: qcom: ipq9574: drop #power-domain-cells property of GCC

On IPQ9574 the Global Clock Controller (GCC) doesn't provide power
domains. Drop the #power-domain-cells property from the controller
device node.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240529-qcom-gdscs-v2-12-69c63d0ae1e7@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/ipq9574.dtsi

@@ -315,7 +315,6 @@ gcc: clock-controller@1800000 {
 				 <0>;
 			#clock-cells = <1>;
 			#reset-cells = <1>;
-			#power-domain-cells = <1>;
 		};
 
 		tcsr_mutex: hwlock@1905000 {