r600: define registers required for tessellation

This adds the defines for a bunch of registers and shader
values that are required to implement tessellation.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Glenn Kennard <glenn.kennard@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2 files changed