Update config for more modern systemd

systemd now creates the virtual terminal. Cherry pick from:
https://patchwork.freedesktop.org/patch/190638/?series=34525&rev=1

Change-Id: I6929d32aade579cf40444d6fc3a865cba6b3b395
3 files changed
tree: d733e45d27d6b41db3c5077cd96aec5bc973ccaa
  1. debian/