power_supply: Add charger driver for MAX8998/LP3974

This patch supports power supply APIs for MAX8998/LP3974.

Signed-off-by: Donggeun Kim <dg77.kim@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: KyungMin Park <kyungmin.park@samsung.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
diff --git a/drivers/mfd/max8998.c b/drivers/mfd/max8998.c
index 9ec7570..de4096a 100644
--- a/drivers/mfd/max8998.c
+++ b/drivers/mfd/max8998.c
@@ -39,6 +39,8 @@
 		.name = "max8998-pmic",
 	}, {
 		.name = "max8998-rtc",
+	}, {
+		.name = "max8998-battery",
 	},
 };