Log Message:
Update meta-pkgs/xorg to 6.9.0.

The full list of changes:
http://ftp.x.org/pub/X11R7.0/doc/html/RELNOTES2.html

Thanks to joerg@ and reed@ for testing on DragonFlyBSD.

Tested on NetBSD/i386 3.0/-current and DragonFlyBSD-1.4/i386.