hostapd may not start because it was masked in systemd

On Debian-likes, hostapd will not start if it was masked in systemd.


### Steps to reproduce

1. mask hostapd with the systemctl command
    ```
    systemctl mask hostapd
    ```
2. run minim-config
    ```
    minim-config
    ```
3. hostapd fails to start


### Workaround

Unmask hostapd manually
```
systemctl unmask hostapd
```