[media] radio-si4713: Don't use module names to load I2C modules

With the v4l2_i2c_new_subdev* functions now supporting loading modules
based on modaliases, replace the hardcoded module name passed to those
functions by NULL.

As no board seems to use this driver, no platform data has been checked.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/radio/radio-si4713.c

@@ -291,7 +291,7 @@ static int radio_si4713_pdriver_probe(struct platform_device *pdev)
 		goto unregister_v4l2_dev;
 	}
 
-	sd = v4l2_i2c_new_subdev_board(&rsdev->v4l2_dev, adapter, "si4713_i2c",
+	sd = v4l2_i2c_new_subdev_board(&rsdev->v4l2_dev, adapter, NULL,
 					pdata->subdev_board_info, NULL);
 	if (!sd) {
 		dev_err(&pdev->dev, "Cannot get v4l2 subdevice\n");