gossip: Trigger announce on channel establishment

Since we ultimately want to have a very long re-announcement timeout
we better trigger an announcement upon channel state change to normal.

daemon/peer.c

@@ -746,6 +746,7 @@ static bool open_wait_pkt_in(struct peer *peer, const Pkt *pkt)
 		if (peer->state == STATE_OPEN_WAIT_THEIRCOMPLETE) {
 			peer_open_complete(peer, NULL);
 			set_peer_state(peer, STATE_NORMAL, __func__, true);
+			announce_channel(peer->dstate, peer);
 		} else {
 			set_peer_state(peer, STATE_OPEN_WAIT_ANCHORDEPTH,
 				       __func__, true);
@@ -2527,6 +2528,10 @@ static struct io_plan *init_pkt_in(struct io_conn *conn, struct peer *peer)
 	peer->inpkt = tal_free(peer->inpkt);
 
 	peer_has_connected(peer);
+
+	if (state_is_normal(peer->state))
+		announce_channel(peer->dstate, peer);
+
 	return io_duplex(conn,
 			 peer_read_packet(conn, peer, pkt_in),
 			 pkt_out(conn, peer));
@@ -3311,6 +3316,7 @@ static void peer_depth_ok(struct peer *peer)
 	case STATE_OPEN_WAIT_ANCHORDEPTH:
 		peer_open_complete(peer, NULL);
 		set_peer_state(peer, STATE_NORMAL, __func__, true);
+		announce_channel(peer->dstate, peer);
 		break;
 	default:
 		log_broken(peer->log, "%s: state %s",