bluetooth: host: l2cap: fix issue that can't get chan by psm

when role is server and try to get chan by psm in application, it
works fail because chan do not store psm.

Signed-off-by: Cheng Chang <[email protected]>

Author: CC0918

subsys/bluetooth/host/classic/l2cap_br.c

@@ -2689,6 +2689,7 @@ static void l2cap_br_conn_req(struct bt_l2cap_br *l2cap, uint8_t ident,
 
 	br_chan = BR_CHAN(chan);
 	br_chan->required_sec_level = server->sec_level;
+	br_chan->psm = psm;
 
 	l2cap_br_chan_add(conn, chan, l2cap_br_chan_destroy);
 	BR_CHAN(chan)->tx.cid = scid;