Merge branch 'vmwgfx-fixes-3.13' of git://people.freedesktop.org/~thomash/linux into drm-fixes

Part of a driver stack fix that fixes surface overcommiting on single execbuf calls.
* 'vmwgfx-fixes-3.13' of git://people.freedesktop.org/~thomash/linux:
  drm/vmwgfx: Add max surface memory param