Merge branch 'linux-4.4' of https://github.com/skeggsb/linux into drm-fixes

Just the one commit I mentioned earlier, making the PGOB workaround the
default.

* 'linux-4.4' of https://github.com/skeggsb/linux:
  drm/nouveau/pmu: remove whitelist for PGOB-exit WAR, enable by default