anv: fix emission of primitive replication packet for mesh stage

anv_pipeline_get_last_vue_prog_data (used by emit_3dstate_primitive_replication)
doesn't work for mesh stage.

Fixes: ae57628dd5 ("anv: Drop anv_pipeline::use_primitive_replication")
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18495>

src/intel/vulkan/genX_pipeline.c

@@ -1874,6 +1874,11 @@ static void
 emit_3dstate_primitive_replication(struct anv_graphics_pipeline *pipeline,
                                    const struct vk_render_pass_state *rp)
 {
+   if (anv_pipeline_is_mesh(pipeline)) {
+      anv_batch_emit(&pipeline->base.batch, GENX(3DSTATE_PRIMITIVE_REPLICATION), pr);
+      return;
+   }
+
    const int replication_count =
       anv_pipeline_get_last_vue_prog_data(pipeline)->vue_map.num_pos_slots;