console: T4646: Fixed USB console issues
console: T4646: Fixed USB console issues

* fixed the `systemctl restart` command that used a value from config instead
converted to `ttyUSBX`
* moved systemd units from `/etc/` to `/run/`

vyos/vyos-1x,vyos/vyos-1x,vyos/vyos-1x,vyos/vyos-1x