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/vis.c b/net/batman-adv/vis.c
index 20eef04..619f0a5 100644
--- a/net/batman-adv/vis.c
+++ b/net/batman-adv/vis.c
@@ -208,7 +208,7 @@
 	size_t buff_pos, buf_size;
 	char *buff;
 
-	primary_if = primary_if_get_selected(bat_priv);
+	primary_if = batadv_primary_if_get_selected(bat_priv);
 	if (!primary_if)
 		goto out;
 
@@ -329,7 +329,7 @@
 
 out:
 	if (primary_if)
-		hardif_free_ref(primary_if);
+		batadv_hardif_free_ref(primary_if);
 	return ret;
 }
 
@@ -828,7 +828,7 @@
 	struct hard_iface *primary_if;
 	struct vis_packet *packet;
 
-	primary_if = primary_if_get_selected(bat_priv);
+	primary_if = batadv_primary_if_get_selected(bat_priv);
 	if (!primary_if)
 		goto out;
 
@@ -849,7 +849,7 @@
 
 out:
 	if (primary_if)
-		hardif_free_ref(primary_if);
+		batadv_hardif_free_ref(primary_if);
 }
 
 /* called from timer; send (and maybe generate) vis packet. */