ASoC: rt286: make rt286_i2c_driver static

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/codecs/rt286.c

@@ -1206,7 +1206,7 @@ static int rt286_i2c_remove(struct i2c_client *i2c)
 }
 
 
-struct i2c_driver rt286_i2c_driver = {
+static struct i2c_driver rt286_i2c_driver = {
 	.driver = {
 		   .name = "rt286",
 		   .owner = THIS_MODULE,