Remove listen PCB when opening new connection

Author: Zarithya

lwbt/l2cap.c

@@ -342,6 +342,9 @@ void l2cap_process_sig(struct pbuf *q, struct l2cap_hdr *l2caphdr, struct bd_add
 
 					pcb->state = L2CAP_CONFIG;
 					L2CAP_REG(&l2cap_active_pcbs, pcb);
+					
+					/* Free the listening pcb, don't need it anymore */
+					l2cap_close((struct l2cap_pcb *)lpcb);
 
 					LOG("l2cap_process_sig: A connection request was received. Send a response\n");
 					data = btpbuf_alloc(PBUF_RAW, L2CAP_CONN_RSP_SIZE, PBUF_RAM);