batman-adv: Prefix main defines with BATADV_

Reported-by: Martin Hundebøll <martin@hundeboll.net>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
diff --git a/net/batman-adv/unicast.c b/net/batman-adv/unicast.c
index 8098320..8454d91 100644
--- a/net/batman-adv/unicast.c
+++ b/net/batman-adv/unicast.c
@@ -323,7 +323,7 @@
 	/* batman packet type: unicast */
 	unicast_packet->header.packet_type = BAT_UNICAST;
 	/* set unicast ttl */
-	unicast_packet->header.ttl = TTL;
+	unicast_packet->header.ttl = BATADV_TTL;
 	/* copy the destination for faster routing */
 	memcpy(unicast_packet->dest, orig_node->orig, ETH_ALEN);
 	/* set the destination tt version number */