Permits MSAA and D3D-style rasterization.

[airlied: add rs600]
Signed-off-by: Corbin Simpson <MostAwesomeDude@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

Fixes up the DISCARD + 2 sided stencil in the new generator scripts.
Signed-off-by: Dave Airlie <airlied@redhat.com>

This could be used to bypass CS checks.
Signed-off-by: Dave Airlie <airlied@redhat.com>

This cleans up the code in mkregtable.c to be more kernel style.
Signed-off-by: Dave Airlie <airlied@redhat.com>

Previously we just made these offline and included them,
but no reason we can't generate them at build time.

TODO: add rs690 + r100/r200 when done.
should we do rs480/rs690 no tcl version?
Signed-off-by: Dave Airlie <airlied@redhat.com>