batman-adv: Prefix hard-interface static inline functions with batadv_

All non-static symbols of batman-adv were prefixed with batadv_ to avoid
collisions with other symbols of the kernel. Other symbols of batman-adv
should use the same prefix to keep the naming scheme consistent.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
diff --git a/net/batman-adv/icmp_socket.c b/net/batman-adv/icmp_socket.c
index 40c5e18..2523436 100644
--- a/net/batman-adv/icmp_socket.c
+++ b/net/batman-adv/icmp_socket.c
@@ -163,7 +163,7 @@
 		return -EINVAL;
 	}
 
-	primary_if = primary_if_get_selected(bat_priv);
+	primary_if = batadv_primary_if_get_selected(bat_priv);
 
 	if (!primary_if) {
 		len = -EFAULT;
@@ -244,7 +244,7 @@
 	kfree_skb(skb);
 out:
 	if (primary_if)
-		hardif_free_ref(primary_if);
+		batadv_hardif_free_ref(primary_if);
 	if (neigh_node)
 		batadv_neigh_node_free_ref(neigh_node);
 	if (orig_node)