Donot parse vmware mode in agent config file if its left blank .
Donot parse vmware mode in agent config file if its left blank .

Change-Id: Ia04b942c18d29566ea21c3f0b31ebfdf2a8bcaac
Closes-Bug: #1510678

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