panvk: Fix unsupported LogicOp NOOP blending

For formats that do not support LogicOps, NOOP should be treated as
COPY. This was implemented in nir/lower_blend, but an optimization in
PanVK would trigger for all NOOP that stopped this from happening.

This commit limits the NOOP optimization to supported formats.

Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35367>
1 file changed