qcacmn: Acquire lock before calling rx tid setup

The rx tid setup function is called from multiple contexts.
Acquire lock before calling that function to avoid race condition.

Change-Id: I7a0443e5e09a068301de171afeb4d400bf54b1c8
CRs-Fixed: 3291079

dp/wifi3.0/dp_peer.c

@@ -4074,6 +4074,7 @@ static int dp_rx_tid_delete_wifi3(struct dp_peer *peer, int tid)
 	if (!freedesc) {
 		dp_peer_err("%pK: malloc failed for freedesc: tid %d",
 			    soc, tid);
+		qdf_assert(0);
 		return -ENOMEM;
 	}