Staging: comedi: fix initialise statics to 0 or NULL issue in pcl816.c

This is a patch to the pcl816.c file that fixes up a initialise statics to 0 or NULL
warning found by the checkpatch.pl tool.
Signed-off-by: Ravishankar Karkala Mallikarjunayya <ravishankar.km@greenturtles.in>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/comedi/drivers/pcl816.c

@@ -155,8 +155,8 @@ static int pcl816_attach(struct comedi_device *dev,
 static int pcl816_detach(struct comedi_device *dev);
 
 #ifdef unused
-static int RTC_lock = 0;	/* RTC lock */
-static int RTC_timer_lock = 0;	/* RTC int lock */
+static int RTC_lock;	/* RTC lock */
+static int RTC_timer_lock;	/* RTC int lock */
 #endif
 
 static struct comedi_driver driver_pcl816 = {