wicked was updated to version 0.6.19, bringing several changes and bugfixes:

- dhcp4: improve invalid dhcp options handling (boo#918069)
- dhcp6: just drop an info lease on release request and stop
- dhcp6: refresh ipv6 link on newprefix in auto mode to
workaround, that the kernel does not send us events about
mode change when RA timers are unspecified (bsc#934067)
- ethtool: do not warn when reading ethtool settings while
netlink newlink processing and the device is already gone.
- ibft: ignore invalid default gateway (0.0.0.0 and ::)
provided by the firmware (bsc#903759)
- wireless: handle ANY for WPA-EAP methods and send passwd
when phase2 method isn't set (boo#927615)
- bonding: don't insist, that arp_validate=none default is
valid in active-backup mode only (boo#919573)
- wickedd: fix to send requested device-up event ack
- nanny: fix error handling for NULL policy objects and fix
to not compare iftype to a dbus class name (boo#931288)
- nanny: ensure a device is ready to satisfy a policy match
- nanny: fixes improving delete and hotplug handling
- ifup: do not recurse when generating nanny policy matches
- ifreload: properly handle some config rename cases
- fsm: ensure to process events in order and don't advance
fsm state from events when device state outdistances it.
- schema: cleanup netif-reference meta:require checks.
- spec: require util-linux-systemd providing logger (bsc#911310)
- conditionally enable nanny use (boo#915025,bsc#916402)