In some case, host may lack ipset utility(e.g., due to a
dependency issue). This will cause create vm failed if we
enable Neutron securitygroup in compute node.
We had already fixed in Neutron side, we using neutron-sanity-check
tool for check ipset installation. But this is insufficiency,
some guys may not know that tool.
So we install ipset in compute node.
backport: Mitaka
Change-Id: If071a9aa3d8bb5854de1abd4c9eb3eafb3b07817
Related-Bug: #1510680
8a4ffb4224