openvpn / server: add ccd files for all the iad2 hosts.
    
    This will allow the iad2 hosts to connect to the phx2 vpn and use
    a different ip from their phx2 counterparts. This way we can change
    haproxy/httpd to point to the new iad2 service and migrate it, but
    still have the rest of services point to phx2.
    
    Signed-off-by: Kevin Fenzi <kevin@scrye.com>