Merge tag 'vfio-ccw-20181213' of...

Merge tag 'vfio-ccw-20181213' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/vfio-ccw into features

Pull vfio-ccw from Cornelia Huck with the following changes:
 - remove unneeded BOXED state
 - maintainership changes