i2c: Get rid of struct i2c_client_address_data

Struct i2c_client_address_data only contains one field at this point,
which makes its usefulness questionable. Get rid of it and pass simple
address lists around instead.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c
index 5fde2f5..dfa4329 100644
--- a/drivers/hwmon/ds1621.c
+++ b/drivers/hwmon/ds1621.c
@@ -321,7 +321,7 @@
 	.remove		= ds1621_remove,
 	.id_table	= ds1621_id,
 	.detect		= ds1621_detect,
-	.address_data	= &addr_data,
+	.address_list	= normal_i2c,
 };
 
 static int __init ds1621_init(void)