Merge branch 's390-qeth-fixes'

Julian Wiedmann says:

====================
s390/qeth: fixes 2019-06-05

one more shot...  now with patch 2 fixed up so that it uses the
dst entry returned from dst_check().

From the v1 cover letter:

Please apply the following set of qeth fixes to -net.

- The first two patches fix issues in the L3 driver's cast type
  selection for transmitted skbs.
- Alexandra adds a sanity check when retrieving VLAN information from
  neighbour address events.
- The last patch adds some missing error handling for qeth's new
  multiqueue code.
====================

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