VMware: add a file to help config the firewall for vnc

This file can be installed to properly configure the
firewall to allow VNC access to openstack instances

DocImpact
Closes Bug: 1294411

Change-Id: Ifc9a7d88c71dfe1b66d6ac395d9574cc619c1d3a
Merge "VMware: add a file to help config the firewall for vnc"