batman-adv: a multiline comment should precede the variable it is describing

This comment has been wrongly put after the variable it refers to and was also bad indented
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Acked-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Sven Eckelmann <sven@narfation.org>

net/batman-adv/types.h

@@ -247,9 +247,9 @@ struct frag_packet_list_entry {
 
 struct vis_info {
 	unsigned long first_seen;
-	struct list_head    recv_list;
 	/* list of server-neighbors we received a vis-packet
 	 * from.  we should not reply to them. */
+	struct list_head recv_list;
 	struct list_head send_list;
 	struct kref refcount;
 	struct hlist_node hash_entry;