Input: bu21013_ts - request regulator that actually exists

Currently the BU21013 Touch Screen driver requests a regulator by the
name of 'V-TOUCH', which doesn't exist anywhere in the kernel. The
correct name, as referenced in platform regulator code is 'avdd'. Here,
when we request a regulator, we use the correct name instead.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/touchscreen/bu21013_ts.c

@@ -461,7 +461,7 @@ static int bu21013_probe(struct i2c_client *client,
 	bu21013_data->chip = pdata;
 	bu21013_data->client = client;
 
-	bu21013_data->regulator = regulator_get(&client->dev, "V-TOUCH");
+	bu21013_data->regulator = regulator_get(&client->dev, "avdd");
 	if (IS_ERR(bu21013_data->regulator)) {
 		dev_err(&client->dev, "regulator_get failed\n");
 		error = PTR_ERR(bu21013_data->regulator);