Virtualbmc 2.0 dropped the daemon autostart feature. This means we need
to explicitly start it. Running it as a Systemd unit, code adapted from
Tenks.
In order to allow Systemd to execute the daemon on systems with SELinux
enabled, it must be installed to the system rather than a virtualenv.
Change-Id: I66e8e5f5a9c16ac90e132074c826d508458ae4d1