tc_vts_passive_vtc_isolate_from_mx: change timing
tc_vts_passive_vtc_isolate_from_mx: change timing

Change-Id: I83d8adbf7ae87c5854a1700e1cd6afa217631a4f

CiscoSystems/os-sqe,CiscoSystems/os-sqe,CiscoSystems/os-sqe