Lots of DRM fixes: added new pieces of template code so the ffb driver can

    be ported, rolled back r128 and i810 version bumps so 4.1.0 works with
    cvs kernel modules, added Config.in and updated Makefile.kernel,
    incorporated lots of drm fixes inspired by patches sent by Redhat, made
    DRM(realloc) usage check for NULL allocations, restructure driver init
    routines to export dev_priv only when initialized and to check for all
    error conditions.