fcfc7c3357
With ace5db70e858b8c114580e8b4f65a3994ee3c4e7 the IID may be gotten from the device again. However, following the current refactoring efforts regarding the `netdev_ieee802154` layer, the devices don't necessarily store the address in the `netdev_ieee802154_t` struct anymore. So we need to access the address using the driver's `get` function here instead.