arm64: dts: qcom: sa8295p-adp: align RPMh regulator nodes with bindings

Device node names should be generic and bindings expect certain pattern
for RPMh regulator nodes.
Signed-off-by: NKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: NKonrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: NBjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230127114347.235963-3-krzysztof.kozlowski@linaro.org

arch/arm64/boot/dts/qcom/sa8295p-adp.dts

@@ -111,7 +111,7 @@
 };
 
 &apps_rsc {
-	pmm8540-a-regulators {
+	regulators-0 {
 		compatible = "qcom,pm8150-rpmh-regulators";
 		qcom,pmic-id = "a";
 
@@ -151,7 +151,7 @@
 		};
 	};
 
-	pmm8540-c-regulators {
+	regulators-1 {
 		compatible = "qcom,pm8150-rpmh-regulators";
 		qcom,pmic-id = "c";
 
@@ -224,7 +224,7 @@
 		};
 	};
 
-	pmm8540-g-regulators {
+	regulators-2 {
 		compatible = "qcom,pm8150-rpmh-regulators";
 		qcom,pmic-id = "g";