ARM: dts: qcom: pm8941: Add vadc nodes needed to estimate an ocv

vbat_sns is needed to estimate a fairly accurate on chip voltage
and bat_therm is needed to produce an accurate percentage
from the estimated ocv.
Signed-off-by: Craig Tatlor <ctatlor97@gmail.com>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>

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

@@ -139,6 +139,9 @@ pm8941_vadc: vadc@3100 {
 			#size-cells = <0>;
 			#io-channel-cells = <1>;
 
+			bat_temp {
+				reg = <VADC_LR_MUX1_BAT_THERM>;
+			};
 			die_temp {
 				reg = <VADC_DIE_TEMP>;
 			};
@@ -154,6 +157,9 @@ ref_gnd {
 			ref_vdd {
 				reg = <VADC_VDD_VADC>;
 			};
+			vbat_sns {
+				reg = <VADC_VBAT_SNS>;
+			};
 		};
 
 		pm8941_iadc: iadc@3600 {