qcacld-3.0: Send deauth to peer as part of TDLS del sta

Currently, DUT doesn't send deauth to peer if wifi is turned
off when TDLS connection is active. So, peer is not aware of the
DUT status TDLS termination happens after STA kickout timeout.

DUT can send deauth frame to peer so that peer can terminate
the TDLS immediately.

Change-Id: I9318780f945ab2f175c914da3840823f205b1bc9
CRs-Fixed: 3674664

core/mac/src/pe/lim/lim_process_tdls.c

@@ -4178,6 +4178,7 @@ QDF_STATUS lim_process_sme_tdls_del_sta_req(struct mac_context *mac,
 	struct pe_session *pe_session;
 	uint8_t session_id;
 	QDF_STATUS status = QDF_STATUS_E_FAILURE;
+	tSirMacAddr peer;
 
 	pe_debug("TDLS Delete STA Request Received");
 	pe_session =
@@ -4220,6 +4221,9 @@ QDF_STATUS lim_process_sme_tdls_del_sta_req(struct mac_context *mac,
 		goto lim_tdls_del_sta_error;
 	}
 
+	qdf_mem_copy(peer, del_sta_req->peermac.bytes, sizeof(tSirMacAddr));
+	lim_send_deauth_mgmt_frame(mac, REASON_DEAUTH_NETWORK_LEAVING,
+				   peer, pe_session, false);
 	status = lim_tdls_del_sta(mac, del_sta_req->peermac,
 				  pe_session, true);
 	if (status == QDF_STATUS_SUCCESS)