Log Message:
Update to 2.8:

dri2 protocol release for prime and dri2 get param.

Chad Versace (2):
      dri2proto: Fix documented opcodes
      dri2proto: Add DRI2GetParam request

Dave Airlie (2):
      dri2proto: add prime protocol support. (v2.1)
      dri2proto: bump package to 2.8