git: amd64: Fix for Xorg. Xorg can now access the video card. Adapted from i386.

[Matthew Dillon]

:commit c33160e8e291f5bb8d2d76aacd2f82d79eaa4d99
:Author: Jordan Gordeev <jgordeev at dir.bg>
:Date:   Fri Sep 18 01:14:30 2009 +0300
:
:    amd64: Fix for Xorg.
:    Xorg can now access the video card.
:    Adapted from i386.

    I cherry-picked it into the release branch.  I will attempt to build a
    nrelease gui dvd.

					-Matt