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

updates for xorg-server 1.20:

- xf86GetOS()/LoaderGetOS() have been replaced. replace them with
direct platform #ifdefs for now.
- shadowUpdatePackedWeak() is gone, use local thunks.
- xf86DisableRandR() is gone, disable it (should be obsolete)

port to xorg-server 1.18.

XXX: fil1236, msp3430, tda9885 and uda1380 drivers are copied from
XXX: our xorg-server 1.10.6 and needed for linking.

mibstore.h and its miInitializeBackingStore() have been otherwise empty
since at least xorg-server 1.10. remove all reference to them as the
header is gone in xorg-server 1.18.

merge xf86-video-ati 6.14.6

merge xf86-video-ati 6.14.4

now that xrender acceleration on R1xx works again there is no reason not to
enable it by default

merge xf86-video-ati 6.14.1

merge xf86-video-ati 6.14.0

Backport upstream bugfix for PR#40149.

"Save and restore the palettes on VT switch."

upstream commits:
5efdf514ab0e5439114e8dd7a49105812155eb69
fc7aa6e3bbb86eaa2f34b827629f7e82cde65ac7

merge xf86-video-ati 6.13.1

merge xf86-video-ati 6.13.0

merge xf86-video-ati 6.12.4

merge xf86-video-ati.

use %lx instead of %x for a few varaiables that may be 64 bit.

also match plain old PCI cards. with this, an older PCI radeo 9250
now works with drm.

initial import of xf86-video-ati-6.9.0