Native Xorg on macppc

[Michael <macallan%netbsd.org@localhost>]

Hello,

I've committed the missing bits&pieces in the last couple of days. The  
only driver tested so far is r128 ( because I happen to have a Rage  
128 in my G4 ) - I'll have a look at mach64 ( Still has issues with  
firmware that doesn't setup the MMIO register aperture, like some  
Apple firmware. This is a regression from XF86's driver which would  
just access the registers through the main aperture in that case.  
Also, some older mach64 don't even have the MMIO register aperture. )  
and chips ( used in old powerbooks, the xf86 driver had some  
endianness issues ) in the next few days, other drivers will have to  
be tested by other people.

have fun
Michael