Refresh patches.

Bumps batman-adv to 2018.1

This goes beyond 18.06.0 since the release contains bug which
have been fixed in the later snapshots.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Reviewed-by: Tim Niemeyer <tim@tn-x.org>
[fabian@blaese.de: Use 18.06.1 for OpenWRT and packages]
Signed-off-by: Fabian Bläse <fabian@blaese.de>
Reviewed-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>