D28590: Add a QString Solid::Device::displayName, used in Fstab Device for network mounts

[Stefan Brüns]

bruns accepted this revision.

REPOSITORY
  R245 Solid

REVISION DETAIL
  https://phabricator.kde.org/D28590

To: meven, #frameworks, bruns, sitter, dfaure, ngraham
Cc: ngraham, dfaure, broulik, ervin, kde-frameworks-devel, LeGast00n, cblack, 
michaelh, bruns