arm/dt: pm8941: detect battery presence using BATT_ID

Select batt_id as the battery presence detection pin
for PM8941 v2 MTPs.

Change-Id: Ia34cf3cd5e5abe691ee1a6b16ef792b0b3a0502c
Signed-off-by: David Keitel <dkeitel@codeaurora.org>
diff --git a/arch/arm/boot/dts/msm8974-v2-mtp.dts b/arch/arm/boot/dts/msm8974-v2-mtp.dts
index c25c385..1735515 100644
--- a/arch/arm/boot/dts/msm8974-v2-mtp.dts
+++ b/arch/arm/boot/dts/msm8974-v2-mtp.dts
@@ -34,3 +34,7 @@
 
 	qcom,misc-ref = <&pm8941_misc>;
 };
+
+&pm8941_chg {
+	qcom,bpd-detection = "bpd_id";
+};