qcacld-3.0: Don't free mlo_link_set_active_req

Currently req->ctx.cb_arg is assigned req memory
in wlan_mlo_sta_mlo_concurency_set_link. and passed to
mlo_ser_set_link_req, where req is again alocated
and req pointer of req->ctx.cb_arg is freed, thus
making req->ctx.cb_arg invalid.

Fix is to avoid allocation of req again and use the
requester memory of mlo_ser_set_link_req as umac_cmd.

Change-Id: Ic96efa204662269fe812c195a3bc8a1da5b215ad
CRs-Fixed: 3188737

components/mlme/core/src/wlan_mlme_main.c

@@ -3895,12 +3895,13 @@ wlan_mlo_sta_mlo_concurency_set_link(struct wlan_objmgr_vdev *vdev,
 	}
 
 	status = mlo_ser_set_link_req(req);
-	if (QDF_IS_STATUS_ERROR(status))
+	if (QDF_IS_STATUS_ERROR(status)) {
 		mlme_err("vdev %d: Failed to set link mode %d num_mlo_vdev %d reason %d",
 			 wlan_vdev_get_id(vdev), mode, num_mlo_vdev,
 			 reason);
+		qdf_mem_free(req);
+	}
 
-	qdf_mem_free(req);
 }
 #endif