[media] smiapp: Use better regulator name for the Device tree

Rename "VANA" regulator as "vana".
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/i2c/smiapp/smiapp-core.c

@@ -2355,7 +2355,7 @@ static int smiapp_registered(struct v4l2_subdev *subdev)
 	unsigned int i;
 	int rval;
 
-	sensor->vana = devm_regulator_get(&client->dev, "VANA");
+	sensor->vana = devm_regulator_get(&client->dev, "vana");
 	if (IS_ERR(sensor->vana)) {
 		dev_err(&client->dev, "could not get regulator for vana\n");
 		return -ENODEV;