nir: Support vec8/vec16 in nir_lower_bit_size

Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6030>
1 file changed