tc_vts_passive_vtc_isolate_from_mx: change timing
tc_vts_passive_vtc_isolate_from_mx: change timing

Change-Id: I35fbca22264ea9eb2a30dba8a59ab734fbeffb1c

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