batman-adv: Use parentheses in function kernel-doc

The documentation describing kernel-doc comments for functions ("How to
format kernel-doc comments") uses parentheses at the end of the function
name. Using this format allows to use a consistent style when adding
documentation to a function and when referencing this function in a
different kernel-doc section.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
diff --git a/net/batman-adv/send.h b/net/batman-adv/send.h
index eb36820..8c7399d 100644
--- a/net/batman-adv/send.h
+++ b/net/batman-adv/send.h
@@ -77,7 +77,7 @@ int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb,
 			   unsigned short vid);
 
 /**
- * batadv_send_skb_via_tt - send an skb via TT lookup
+ * batadv_send_skb_via_tt() - send an skb via TT lookup
  * @bat_priv: the bat priv with all the soft interface information
  * @skb: the payload to send
  * @dst_hint: can be used to override the destination contained in the skb
@@ -98,7 +98,7 @@ static inline int batadv_send_skb_via_tt(struct batadv_priv *bat_priv,
 }
 
 /**
- * batadv_send_skb_via_tt_4addr - send an skb via TT lookup
+ * batadv_send_skb_via_tt_4addr() - send an skb via TT lookup
  * @bat_priv: the bat priv with all the soft interface information
  * @skb: the payload to send
  * @packet_subtype: the unicast 4addr packet subtype to use