batman-adv: fix wrong spinlock inline comment

Signed-off-by: Antonio Quartulli <ordex@autistici.org>

net/batman-adv/types.h

@@ -303,7 +303,7 @@ struct batadv_priv {
 	struct hlist_head forw_bcast_list;
 	struct batadv_hashtable *orig_hash;
 	spinlock_t forw_bat_list_lock; /* protects forw_bat_list */
-	spinlock_t forw_bcast_list_lock; /* protects  */
+	spinlock_t forw_bcast_list_lock; /* protects forw_bcast_list */
 	struct delayed_work orig_work;
 	struct batadv_hard_iface __rcu *primary_if;  /* rcu protected pointer */
 	struct batadv_algo_ops *bat_algo_ops;