[xorg-x11-drv-intel/f17] (3 commits) ...Merge branch 'f18' into f17

[Adam Jackson]

Summary of changes:

  76ccb15... Fix damage issue for reverse prime work (*)
  e382f10... intel 2.20.18 (*)
  e0c7d26... Merge branch 'f18' into f17

(*) This commit already existed in another branch; no separate mail sent