treewide: fix comment/printk/variable typos

Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

net/8021q/vlanproc.c

@@ -105,7 +105,7 @@ static const struct file_operations vlandev_fops = {
 };
 
 /*
- * Proc filesystem derectory entries.
+ * Proc filesystem directory entries.
  */
 
 /* Strings */