Merge branch 's390-net-next'

Julian Wiedmann says:

====================
s390/net: updates 2019-08-20

please apply the following patches to net-next. This series brings a mix
of cleanups and small improvements for various parts of qeth's control
path. Also, a minor cleanup for ctcm and lcs.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>