Add module version name at a lower layer of the code, allows things to be

Add module version name at a lower layer of the code, allows things to be
    more flexible and allow older module versions to still work. Might not
    be final code if we move over to DRI kernel module version, but will be
    if we use XFree86 version. + Only build tdfx.o instead of tdfx-4_1_0.o
    since tdfx.o has never changed its API.