Merge branch 's390-next'

Julian Wiedmann says:

====================
s390/qeth: updates 2019-02-15

please apply a few more qeth patches to net-next. Along with some smaller
improvements, this revamps our code for the SW statistics that are exposed
through ETHTOOL_GSTATS.
====================

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