[VirtualBox-kmod/f28] (10 commits) ...Merge branch 'master' into f29

Summary of changes: 01855cf... Rebuilt (*) e09dd61... Fix vboxvideo.ko build on rhel76 (*) 729a728... simplify filename and avoid a weird problem on rpm of F28 (*) ae7a20d... VirtualBox 6.0 (*) 45d43a4... Update to 6.0.2. (*) 2efdc6b... Update to 6.0.4 (*) 0d16ad7... Fixes for upcoming kernel 5.1 and update of new vboxsf (*) d5e07f0... - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass (*) 00d177b... Reabse and squash f29 (*) 6ef7533... Merge branch 'master' into f29 (*) (*) This commit already existed in another branch; no separate mail sent