xf86-video-sis: Changes to 'pciaccess'

[Dave Airlie]

New branch 'pciaccess' available with the following commits:
commit 70989db1c4e9465a7dd39f5d06edfc24a67d9ad6
Author: Dave Airlie <airlied at redhat.com>
Date:   Tue Jan 8 16:01:09 2008 +1000

    fix warnings in build

commit d94a2efa2ea26c4fbb246ea93e9cc10b97cf3ea3
Author: Dave Airlie <airlied at redhat.com>
Date:   Tue Jan 8 14:38:04 2008 +1000

    inital SiS pci access patch