qcacld-3.0: Send disassoc cnf if host failed to send disassoc to FW

Problem scenario:
1) Host gets Firmware down indication and stops all timers.
2) While processing association completion, host sends disassoc if
   user changed reg domain during association and new channel falls
   out of current reg domain.
3) Host fails to send disassoc to fw as WMI is in stop state due to SSR
4) Host doesn't check wmi status for disassoc tx and on failure depends
   on disassoc ack timer to complete disassoc cnf.
5) As host stops timers on firmware down indication, disassoc ack timer
   doesn't trigger and host fails to complete disassoc cnf action. Which
   lead to stuck the vdev state machine at suspend down and peer refs
   remains undeleted.

To fix this issue check the status of sending the disassoc, and if the
disassoc failed to send then perform the follow-up actions that are
normally performed upon receipt of the disassoc confirmation.

Change-Id: Ic2b88cfcbcb755a869ee281be4e1e8a9cec8299b
CRs-Fixed: 2816503

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

@@ -3578,6 +3578,13 @@ lim_send_disassoc_mgmt_frame(struct mac_context *mac,
 			       (QDF_MODULE_ID_PE, TRACE_CODE_TX_COMPLETE,
 			       pe_session->peSessionId, qdf_status));
 
+		if (QDF_IS_STATUS_ERROR(qdf_status)) {
+			pe_err("Failed to send disassoc frame");
+			lim_tx_complete(mac, pPacket, true);
+			lim_send_disassoc_cnf(mac);
+			return;
+		}
+
 		val = SYS_MS_TO_TICKS(LIM_DISASSOC_DEAUTH_ACK_TIMEOUT);
 
 		if (tx_timer_change