anv: Refactor pipeline l3 config setup

Now that we're using gen_l3_config.c, we no longer have one set of l3
config functions per gen and we can simplify a bit.  Also, we know that
only compute uses SLM so we don't need to look for it in all of the stages.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

src/intel/vulkan/genX_pipeline.c

@@ -85,10 +85,10 @@ genX(compute_pipeline_create)(
 
    pipeline->use_repclear = false;
 
-   anv_setup_pipeline_l3_config(pipeline);
-
    const struct brw_cs_prog_data *cs_prog_data = get_cs_prog_data(pipeline);
 
+   anv_pipeline_setup_l3_config(pipeline, cs_prog_data->base.total_shared > 0);
+
    uint32_t group_size = cs_prog_data->local_size[0] *
       cs_prog_data->local_size[1] * cs_prog_data->local_size[2];
    uint32_t remainder = group_size & (cs_prog_data->simd_size - 1);