Fix for service monitor health check disassociation issue
Fix for service monitor health check disassociation issue

while removing the port tuple, the service health check
disassociation is not happening in vmi due to the wrong parameter
lookup. Issue is taken care by looking up the right param.

Change-Id: I09406adde028fe25257327bdaece190d408edb62
Closes-bug: 1612719

tcpcloud/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller