target: msm8996: Add support for weak battery charging

Initialize charger driver to make sure the battery is good enough to
continue boot up.

Change-Id: Iff425b804352b01f019377988d2c0f9982ec6caf
diff --git a/target/msm8996/rules.mk b/target/msm8996/rules.mk
index 8966c0a..a0c3a8d 100644
--- a/target/msm8996/rules.mk
+++ b/target/msm8996/rules.mk
@@ -28,6 +28,7 @@
 	dev/qpnp_wled \
 	dev/qpnp_led \
 	dev/gcdb/display \
+	dev/pmic/pmi8994 \
 	lib/ptable \
 	lib/libfdt