systemd/systemd-services: add tinydm and set -q for wpa_supplicant

Oliver Smithrequested to merge
ollieparanoid/pmaports:systemd-tinydm into master

Add tinydm for postmarketos-ui-sway (tinydm#11 (closed)).

Set -q for wpa_supplicant so it doesn't fill journalctl constantly.

See individual commit messages for details.

Merge request reports