mac80211: use eth_broadcast_addr

Instead of memset().

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index 075bc53..bec7b28 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -531,7 +531,7 @@
 
 	read_lock_bh(&pathtbl_resize_lock);
 	memcpy(new_mpath->dst, dst, ETH_ALEN);
-	memset(new_mpath->rann_snd_addr, 0xff, ETH_ALEN);
+	eth_broadcast_addr(new_mpath->rann_snd_addr);
 	new_mpath->is_root = false;
 	new_mpath->sdata = sdata;
 	new_mpath->flags = 0;