ARM: dts: qcom: ipq4019: rename SAW nodes to power-manager

The SAW2 device is not a regulator. It is a frontend to the PMIC, which
handles voltage control, automatic voltage scaling and low-power states,
Rename SAW2 nodes to 'power-manager', the name which is suggested by
qcom,saw2.yaml
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20240102-saw2-spm-regulator-v7-15-0472ec237f49@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm/boot/dts/qcom/qcom-ipq4019.dtsi

@@ -350,31 +350,31 @@ acc3: power-manager@b0b8000 {
 			reg = <0x0b0b8000 0x1000>, <0xb008000 0x1000>;
 		};
 
-		saw0: regulator@b089000 {
+		saw0: power-manager@b089000 {
 			compatible = "qcom,ipq4019-saw2-cpu", "qcom,saw2";
 			reg = <0x0b089000 0x1000>, <0x0b009000 0x1000>;
 			regulator;
 		};
 
-		saw1: regulator@b099000 {
+		saw1: power-manager@b099000 {
 			compatible = "qcom,ipq4019-saw2-cpu", "qcom,saw2";
 			reg = <0x0b099000 0x1000>, <0x0b009000 0x1000>;
 			regulator;
 		};
 
-		saw2: regulator@b0a9000 {
+		saw2: power-manager@b0a9000 {
 			compatible = "qcom,ipq4019-saw2-cpu", "qcom,saw2";
 			reg = <0x0b0a9000 0x1000>, <0x0b009000 0x1000>;
 			regulator;
 		};
 
-		saw3: regulator@b0b9000 {
+		saw3: power-manager@b0b9000 {
 			compatible = "qcom,ipq4019-saw2-cpu", "qcom,saw2";
 			reg = <0x0b0b9000 0x1000>, <0x0b009000 0x1000>;
 			regulator;
 		};
 
-		saw_l2: regulator@b012000 {
+		saw_l2: power-manager@b012000 {
 			compatible = "qcom,ipq4019-saw2-l2", "qcom,saw2";
 			reg = <0xb012000 0x1000>;
 			regulator;