arm64: dts: qcom: acer-aspire1: Enable RTC

pm6150 has a read-only RTC that can be used to keep the time with some
extra userspace tools. Enable it.
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Nikita Travkin <nikita@trvn.ru>
Link: https://lore.kernel.org/r/20231205-aspire1-sound-v2-1-443b7ac0a06f@trvn.ruSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/sc7180-acer-aspire1.dts

@@ -351,6 +351,10 @@ &pm6150_pon {
 	status = "disabled";
 };
 
+&pm6150_rtc {
+	status = "okay";
+};
+
 &qupv3_id_0 {
 	status = "okay";
 };