batman-adv: fix batadv_v_ogm_packet_recv error handling kernel-doc

All receive handlers in batman-adv are consuming the skbuff independent of
the result of the handler. The "(without freeing the skb) on failure" is
therefore not corrrect anymore for the current implementation.

Signed-off-by: Sven Eckelmann <sven@narfation.org>

net/batman-adv/bat_v_ogm.c

@@ -984,7 +984,7 @@ out:
  * @if_incoming: the interface where this OGM has been received
  *
  * Return: NET_RX_SUCCESS and consume the skb on success or returns NET_RX_DROP
- * (without freeing the skb) on failure
+ * (freeing the skb) on failure
  */
 int batadv_v_ogm_packet_recv(struct sk_buff *skb,
 			     struct batadv_hard_iface *if_incoming)