Makes overlay XV work with intel 2.7.1. ok matthieu@, tested by naddy@,
sturm@, matthieu@ and myself. This is most important for the x40 and
other 8xx chipset which lack textured video.
are to some assertions and a small change to modesetting code).
bump libdrm_intel minor due to added symbols, libdrm doesn't get bumped,
no change to symbol list.
ok matthieu@.
This is needed for us to be able to update Mesa and xf86-video-intel.
Includes a few fixes, as well as the intel bufmgr interface and the
modesetting interface (which currently errors when you check if it's
enabled).
ok matthieu@
