merge xf86-video-ati 22.0.0.

merge xf86-video-ati 19.1.0, xf86-video-amdgpu 19.1.0,
xf86-video-geode 2.11.20, and xf86-video-s3 0.7.0.

merge xf86-video-ati 19.0.1.

fix various errors and warnings with xorg-server 1.20:

- no Error() in scope
- more wakeup/blockhandler ABI changes
- more notify fd API changes
- more xf86CursorResetCursor changes
- lots of char* -> const char*
- fix ati kms config.h now HAVE_XF86_CURSOR_RESET_CURSOR is available
- another xf86GetOS() is removed fix
- OsBlockSIGIO() etc, -> old, but still around API until properly converted
- don't free const char * data owned by some other system

mostly fix amd64 xorg-server 1.20 builds:

- avoid bswap_16 etc defines for now. ends up with code-in-decl
- more ABI_VERSION 23 fixes (BlockHandler/WakeHandler) including re-fix
from previous
- more Notify API
- more shadowUpdatePackedWeak() removal
- remove fd_set handling from intel driver (part of ABI_VERSION 23)
- cope better with PixMap/Drawable separation in new server
- remove support for maxHValue and maxVValue (XXX?)
- hide drmmode_udev_notify() when not building udev
- comment out nouveau 'wfb' support, xorg-server 1.20 only supplies
either 'wfb' or 'fb' interface, not both, and we choose 'fb'
- define 'pointer' in nv_proto.h rather than relying upon Xdefs.h
- normalise the value of _XTYPEDEF_POINTER
- EGL is broken (missing) in xsrc currently

merge ati driver 18.1.0.

merge xf86-video-ati 18.0.0.

merge xf86-video-amdgpu-1.3.0, xf86-video-ati-7.9.0,
xf86-video-nouveau-1.0.15, and xf86-video-openchrome-0.6.0.

update properly for xf86-vide-ati 7.8.0.

merge xf86-video-ati 7.8.0.

update for xf86-video-ati 7.7.0

add generated config.h for xf86-video-ati 7.5.0.