[xorg-x11-drv-nvidia/f28] (5 commits) ...Merge branch 'master' into f28

Summary of changes: 8f5d16e... Change vulkan requires to reflect recent changes, all 396.x (*) 6a5eaf6... Update to 396.51 release (*) 5f4965c... Update to 396.54 release (*) 91bf7f9... Add epoch to for nvidia-persistenced requires (*) 648dbdc... Merge branch 'master' into f28 (*) This commit already existed in another branch; no separate mail sent