[Intel-gfx] Updated drm-intel-testing

[Daniel Vetter]

Hi all,

New testing round:
- pc8+ support from Paulo
- more vma patches from Ben.
- Kconfig option to enable preliminary support by default (Josh
  Triplett)
- Optimized cpu cache flush handling and support for write-through caching
  of display planes on Iris (Chris)
- rc6 tuning from Stéphane Marchesin for more stability
- VECS seqno wrap/semaphores fix (Ben)
- a pile of smaller cleanups and improvements all over

Note that I've dropped the execbuf vma conversion from Ben though since it
felt a bit risky and I don't want to rock the 3.12 boat too much. I'll
immediately reapply those again next for the new dinq.

And a second heads-up: I expect that the next feature round won't hit
3.12, so from now on it's all for 3.13. Or at least very likely for 3.13.

Happy testing!

Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch