arm64: dts: qcom: sm8550: Fix the aoss_qmp node name

The proper name for it is power-management. Currently, with the node
name being power-controller, the bindings check fails due to the
property #power-domain-cells missing.

Fixes: ffc50b2d ("arm64: dts: qcom: Add base SM8550 dtsi")
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Reviewed-by: Sai Prakash Ranjan <quic_saipraka@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230127131441.1157679-1-abel.vesa@linaro.org

arch/arm64/boot/dts/qcom/sm8550.dtsi

@@ -2516,7 +2516,7 @@ tsens2: thermal-sensor@c273000 {
 			#thermal-sensor-cells = <1>;
 		};
 
-		aoss_qmp: power-controller@c300000 {
+		aoss_qmp: power-management@c300000 {
 			compatible = "qcom,sm8550-aoss-qmp", "qcom,aoss-qmp";
 			reg = <0 0x0c300000 0 0x400>;
 			interrupt-parent = <&ipcc>;