mac80211: Assign a default mesh beaconing interval.

The mesh stack was enabling beaconing without specifying an interval.  This
patch defines a default beaconing interval of 1s.

Incidentally, this fixes mesh beaconing in mac80211_hwsim devices.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 10d9338..25d0065 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -525,9 +525,11 @@
 	struct ieee80211_local *local = sdata->local;
 
 	ifmsh->housekeeping = true;
-	ieee80211_queue_work(&local->hw, &ifmsh->work);
+	queue_work(local->hw, &ifmsh->work);
+	sdata->vif.bss_conf.beacon_int = MESH_DEFAULT_BEACON_INTERVAL;
 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON |
-						BSS_CHANGED_BEACON_ENABLED);
+						BSS_CHANGED_BEACON_ENABLED |
+						BSS_CHANGED_BEACON_INT);
 }
 
 void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)