ARM: dts: qcom-msm8660: align RPM regulators node name with bindings

Node names should be generic and new DT schema expects RPM regulators
node to be just "regulators".
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221005-mdm9615-pinctrl-yaml-v3-5-e5e045644971@linaro.org

arch/arm/boot/dts/qcom-msm8660.dtsi

@@ -496,7 +496,7 @@ rpmcc: clock-controller {
 				clock-names = "pxo";
 			};
 
-			pm8901-regulators {
+			regulators-0 {
 				compatible = "qcom,rpm-pm8901-regulators";
 
 				pm8901_l0: l0 {};
@@ -520,7 +520,7 @@ pm8901-regulators {
 				pm8901_mvs: mvs {};
 			};
 
-			pm8058-regulators {
+			regulators-1 {
 				compatible = "qcom,rpm-pm8058-regulators";
 
 				pm8058_l0: l0 {};