ARM: dts: qcom: pm8941: align SPMI PMIC LPG node name with dtschema

Bindings expect LPG/PWM node name to be "pwm":

  pmic@5: 'lpg' does not match any of the regexes
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220828084341.112146-3-krzysztof.kozlowski@linaro.org

arch/arm/boot/dts/qcom-pm8941.dtsi

@@ -144,7 +144,7 @@ pm8941_1: pm8941@1 {
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		pm8941_lpg: lpg {
+		pm8941_lpg: pwm {
 			compatible = "qcom,pm8941-lpg";
 
 			#address-cells = <1>;