nir: add nir_intrinsic_load_lshs_vertex_stride_amd

For loading LS-HS vertex stride by shader argument in radeonsi.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16418>

src/compiler/nir/nir_divergence_analysis.c

@@ -176,6 +176,7 @@ visit_intrinsic(nir_shader *shader, nir_intrinsic_instr *instr)
    case nir_intrinsic_load_btd_local_arg_addr_intel:
    case nir_intrinsic_load_mesh_inline_data_intel:
    case nir_intrinsic_load_ray_num_dss_rt_stacks_intel:
+   case nir_intrinsic_load_lshs_vertex_stride_amd:
       is_divergent = false;
       break;