[MTD] [MAPS] Fix printk format warning in nettel.c

MTD size is 64-bit now...

Pointed out by Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

drivers/mtd/maps/nettel.c

@@ -357,8 +357,8 @@ static int __init nettel_init(void)
 		*intel1par = 0;
 	}
 
-	printk(KERN_NOTICE "SNAPGEAR: Intel flash device size = %dK\n",
-		(intel_mtd->size >> 10));
+	printk(KERN_NOTICE "SNAPGEAR: Intel flash device size = %lldKiB\n",
+	       (unsigned long long)(intel_mtd->size >> 10));
 
 	intel_mtd->owner = THIS_MODULE;