Fix build with xorg-server 21.1

Hi,

This driver stopped compiling with xorg-server 21.1, because bool was renamed to boolean in OptionInfoRec. This MR simply renames bool to boolean where appropriate, to make it compile.

changed the description

mentioned in merge request !5 (merged)

@jpoiret Could you rebase your branch against master?

Would be nice to get this patch merged as the driver is still used in Debian for older PowerPC hardware.

added 3 commits

• 04b72617...82129368 - 2 commits from branch xorg/driver:master
• 3ab2c144 - Rename bool to boolean for OptionInfoRec.

Compare with previous version

Here, this should be rebased against master (I don't really know the ins and outs of MRs on GitLab though). We also use these drivers in GNU Guix, hence the patch.

merged

Doing this unconditionally breaks builds against Xorg 1.20 and earlier - it looks like we can fix that with something like

#if GET_ABI_MAJOR(ABI_VIDEODRV_VERSION) < 25
# define boolean bool
#endif

Or do we just want to say that new driver releases no longer support the old server releases? (In which case there's a lot of dead code we can clean out.)