D28478: [FileProtocol] change statx stat_dev() to use device major + minor

[Stefan Brüns]

bruns requested changes to this revision.
This revision now requires changes to proceed.

REPOSITORY
  R241 KIO

REVISION DETAIL
  https://phabricator.kde.org/D28478

To: ahmadsamir, #frameworks, dfaure, meven, bruns
Cc: bruns, kde-frameworks-devel, LeGast00n, cblack, GB_2, michaelh, ngraham