aco: convert vs and so info over to aco structs.

This renames the vs to vp (vertex pipeline) on the way past.

Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16342>

src/amd/compiler/aco_instruction_selection_setup.cpp

@@ -248,7 +248,7 @@ get_reg_class(isel_context* ctx, RegType type, unsigned components, unsigned bit
 
 void
 setup_vs_output_info(isel_context* ctx, nir_shader* nir,
-                     const radv_vs_output_info* outinfo)
+                     const aco_vp_output_info* outinfo)
 {
    ctx->export_clip_dists = outinfo->export_clip_dists;
    ctx->num_clip_distances = util_bitcount(outinfo->clip_dist_mask);