lp8727_charger: Add MODULE_DEVICE_TABLE

Add MODULE_DEVICE_TABLE to setup modalias for lp8727. Allows auto
modprobing.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
diff --git a/drivers/power/lp8727_charger.c b/drivers/power/lp8727_charger.c
index 815dba3..ab0f431 100644
--- a/drivers/power/lp8727_charger.c
+++ b/drivers/power/lp8727_charger.c
@@ -480,6 +480,7 @@
 	{"lp8727", 0},
 	{ }
 };
+MODULE_DEVICE_TABLE(i2c, lp8727_ids);
 
 static struct i2c_driver lp8727_driver = {
 	.driver = {