chroot: add third party modules if available

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
chroot: dont always enable third party modules

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
eewiki: make sure python-dbus is also installed with systemd

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>