pm: pm8921_charger: add dc uevent for off mode charger

Change-Id: Ia50d5757a9dcf04936875b40d68905810adaf311
diff --git a/drivers/power/pm8921-charger.c b/drivers/power/pm8921-charger.c
index c3d07e1..89786e1 100644
--- a/drivers/power/pm8921-charger.c
+++ b/drivers/power/pm8921-charger.c
@@ -2679,6 +2679,7 @@
 
 	power_supply_changed(&chip->batt_psy);
 	power_supply_changed(&chip->usb_psy);
+	power_supply_changed(&chip->dc_psy);
 	return IRQ_HANDLED;
 }
 /*