Pull up following revision(s) (requested by mrg in ticket #25):
	external/mit/libdrm/dist/radeon/radeon_bo_gem.c: revision 1.4
convert an mmap() to drmMap().
Pull up following revision(s) (requested by macallan in ticket #40):
	external/mit/xf86-video-nv/dist/src/nv_driver.c: revision 1.5
put pci_device_has_kernel_driver(dev) into #if NV_TEST_FOR_KERNEL_DRIVER
at least for now there is nothing that keeps the nv driver from running
if a kernel driver other than vga is attached
Now this works again on macppc ( and x86 if you use for example genfb )
mention NV_TEST_FOR_KERNEL_DRIVER and explain why it isn't enabled for now