arm64: dts: qcom: sc8180x-pmics: align SPMI PMIC Power-on node name with dtschema

Bindings expect the Power-on node name to be "pon":

  sc8180x-lenovo-flex-5g.dtb: pmic@0: 'power-on@800' does not match any of the regexes:

Fixes: d3302290 ("arm64: dts: qcom: sc8180x: Add pmics")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230720083500.73554-3-krzysztof.kozlowski@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/sc8180x-pmics.dtsi

@@ -74,7 +74,7 @@ pmc8180_0: pmic@0 {
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		pon: power-on@800 {
+		pon: pon@800 {
 			compatible = "qcom,pm8916-pon";
 			reg = <0x0800>;
 			pwrkey {
@@ -247,7 +247,7 @@ pmic@4 {
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		power-on@800 {
+		pon@800 {
 			compatible = "qcom,pm8916-pon";
 			reg = <0x0800>;