Related-Bug: #1390392
Added 'Private VLAN' text field in Create Network popup in case of
   vCenter orchestration mode. It will not be visible in Edit Network popup

Change-Id: Ia403b49a1914a63cba44fd3b87d3ed79d83aac53
Merge "Related-Bug: #1390392 Added 'Private VLAN' text field in Create Network popup in case of    vCenter orchestration mode. It will not be visible in Edit Network popup"