[systemd][network] Append any to wait-online service

The wait-online service is used to postpone the start of the Edgehog Device Runtime until a network connection was established. In the default configuration, the wait-online service waits until all interfaces are configured. For the devices that have multiple network interfaces (e.g. the TANARO has eth0, eth1, and wlan0), this can result in a timeout if one of the interfaces is not configured properly. The any parameter waits until at least one interface is configured and in the up state, which should normally suffice our intended purpose.

(cherry picked from commit dd805569)