Staging: comedi: fix initialization of static to 0 in ni_pcidio.c

This patch removes initialization of static to 0 or NULL error found
by checkpatch.pl tool
Signed-off-by: NBojan Prtvar <prtvar.b@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/comedi/drivers/ni_pcidio.c

@@ -688,7 +688,7 @@ static void ni_pcidio_print_status(unsigned int flags)
 static void debug_int(struct comedi_device *dev)
 {
 	int a, b;
-	static int n_int = 0;
+	static int n_int;
 	struct timeval tv;
 
 	do_gettimeofday(&tv);