arm64: dts: qcom: pms405: add rtc node

RTC is found on PMIC PMS405 and is same as other PMIC used, so add the
rtc node with compatible as qcom,pm8941-rtc
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>

arch/arm64/boot/dts/qcom/pms405.dtsi

@@ -10,5 +10,11 @@ pms405_0: pms405@0 {
 		#address-cells = <1>;
 		#size-cells = <0>;
 
+		rtc@6000 {
+			compatible = "qcom,pm8941-rtc";
+			reg = <0x6000>;
+			reg-names = "rtc", "alarm";
+			interrupts = <0x0 0x61 0x1 IRQ_TYPE_NONE>;
+		};
 	};
 };