Update the stable DRI port to X.Org 6.7.0-release's DRI modules. Note that
the version number has changed to track the Mesa version instead of the X
release, which is not really related to DRI development. This is because it is
very likely that we will be building the DRI drivers from Mesa soon.
Tested on: XFree86 4.3 + R100, X.Org 6.7.0 + R200