arm64: dts: qcom: sdm670-google-sargo: enable charger

The Pixel 3a has a rechargeable 3000 mAh battery. Describe it and enable
its charging controller in PM660.

Signed-off-by: Richard Acayan <mailingradian@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250630224158.249726-2-mailingradian@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/sdm670-google-sargo.dts

@@ -33,6 +33,14 @@
 
 	aliases { };
 
+	battery: battery {
+		compatible = "simple-battery";
+
+		voltage-min-design-microvolt = <3312000>;
+		voltage-max-design-microvolt = <4400000>;
+		charge-full-design-microamp-hours = <3000000>;
+	};
+
 	chosen {
 		stdout-path = "serial0:115200n8";
 
@@ -478,6 +486,15 @@
 	status = "okay";
 };
 
+&pm660_charger {
+	monitored-battery = <&battery>;
+	status = "okay";
+};
+
+&pm660_rradc {
+	status = "okay";
+};
+
 &pm660l_flash {
 	status = "okay";