xf86-video-ati: Changes to 'radeon-vbos'

[Dave Airlie]

New branch 'radeon-vbos' available with the following commits:
commit 52e590cd112c15666659710cbbf851ce8c833191
Author: Dave Airlie <airlied at redhat.com>
Date:   Sun May 9 17:38:09 2010 +1000

    ddx: add VBO support for r300-r500.
    
    This adds initial VBO support for R300->R500.
    
    On my rv370 Lenovo T43 laptop, this gets x11perf aa10text from
    3200000 reps @   0.0020 msec (507000.0/sec): Char in 80-char aa line (Charter 10)
    to
    3200000 reps @   0.0018 msec (546000.0/sec): Char in 80-char aa line (Charter 10)
    
    Signed-off-by: Dave Airlie <airlied at redhat.com>