nir/lower_io_to_scalar: add case for lowering push constants

Signed-off-by: Simon Perretta <simon.perretta@imgtec.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36000>
1 file changed