w1/masters: use pr_* instead of printk

This patch replaces all calls to the "printk" function within the "masters"
subdirectory by calls to the appropriate "pr_*" function thus addressing
the following warning generated by the checkpatch script:

WARNING: Prefer [subsystem eg: netdev]_err([subsystem]dev, ...
        then dev_err(dev, ... then pr_err(...  to printk(KERN_ERR ...

Signed-off-by: Fjodor Schelichow <fjodor.schelichow@hotmail.com>
Signed-off-by: Roman Sommer <romsom2@yahoo.de>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/w1/masters/ds2482.c

@@ -226,7 +226,7 @@ static int ds2482_wait_1wire_idle(struct ds2482_data *pdev)
 	}
 
 	if (retries >= DS2482_WAIT_IDLE_TIMEOUT)
-		printk(KERN_ERR "%s: timeout on channel %d\n",
+		pr_err("%s: timeout on channel %d\n",
 		       __func__, pdev->channel);
 
 	return temp;