qcacmn: Enhancements for link switch disconnect

Introduce following for link switch disconnect:
   1) Disconnect source.
   2) Disconnect reason.
   3) Link switch BIT in CM_ID to identify link switch request

Don't notify link switch disconnect to initiate disconnect on
other connect VDEV of MLO mgr.

Don't notify userspace if the disconnect request is due to
link switch.

Don't notify netdev to stop queues on link switch disconnect.

Don't flush any pending disconnect/connect request on complete
of link switch disconnect request.

Don't attempt to serialize/deserialize disconnect command
if it is a link switch command ID due to either disconnect request,
disconnect complete or disconnect request flush.

Before start of link switch set the VDEV flag as MLO link VDEV
to leverage the disconnect/connect checks for link VDEV and
restore the flag at the end of link switch. This will impact
when link switch on assoc VDEV is received for which initially
the flag is not set.

Check status of link switch disconnect done API to either
proceed further in link switch or terminate the link switch.
If any userspace disconnect and link switch disconnect race
condition, always abort link switch disconnect and notify
failure to FW.

Change-Id: I6ec2a850d49f5ec6df2ec868c290f19203cd8c88
CRs-Fixed: 3556481

umac/mlme/mlme_objmgr/dispatcher/src/wlan_cmn_mlme_main.c

@@ -523,13 +523,14 @@ QDF_STATUS mlme_cm_osif_disconnect_complete(struct wlan_objmgr_vdev *vdev,
 	return ret;
 }
 
-QDF_STATUS mlme_cm_osif_disconnect_start_ind(struct wlan_objmgr_vdev *vdev)
+QDF_STATUS mlme_cm_osif_disconnect_start_ind(struct wlan_objmgr_vdev *vdev,
+					     enum wlan_cm_source source)
 {
 	QDF_STATUS ret = QDF_STATUS_SUCCESS;
 
 	if (glbl_cm_ops &&
 	    glbl_cm_ops->mlme_cm_disconnect_start_cb)
-		ret = glbl_cm_ops->mlme_cm_disconnect_start_cb(vdev);
+		ret = glbl_cm_ops->mlme_cm_disconnect_start_cb(vdev, source);
 
 	return ret;
 }