Note: c10s doesn't include a dhcp-client, NetworkManager handles dhcp
connections but it doesn't work in the non-default network namespace.
However, the octavia worker always sends the assigned fixed_ips to the
amphora, so it means that amphora-agent always configures static IP
addresses in the amphora-haproxy namespace.
Change-Id: Ie581710636fec38daebe6df560844f14e138e21c
Signed-off-by: Gregory Thiemonge <gthiemon@redhat.com>