[media] staging/media: Use dev_ or pr_ printks in go7007/wis-saa7115.c

fixed below checkpatch warnings.
- WARNING: Prefer netdev_err(netdev, ... then dev_err(dev, ... then pr_err(...  to printk(KERN_ERR ...
- WARNING: Prefer netdev_dbg(netdev, ... then dev_dbg(dev, ... then pr_debug(...  to printk(KERN_DEBUG ...

Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/staging/media/go7007/wis-saa7115.c

@@ -414,12 +414,12 @@ static int wis_saa7115_probe(struct i2c_client *client,
 	dec->hue = 0;
 	i2c_set_clientdata(client, dec);
 
-	printk(KERN_DEBUG
+	dev_dbg(&client->dev,
 		"wis-saa7115: initializing SAA7115 at address %d on %s\n",
 		client->addr, adapter->name);
 
 	if (write_regs(client, initial_registers) < 0) {
-		printk(KERN_ERR
+		dev_err(&client->dev,
 			"wis-saa7115: error initializing SAA7115\n");
 		kfree(dec);
 		return -ENODEV;