nir: Print nir_selection_control_divergent_always_taken.

Signed-off-by: Georg Lehmann <dadschoorse@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17921>

src/compiler/nir/nir_print.c

@@ -1560,6 +1560,9 @@ print_if(nir_if *if_stmt, print_state *state, unsigned tabs)
    case nir_selection_control_dont_flatten:
       fprintf(fp, " /* don't flatten */");
       break;
+   case nir_selection_control_divergent_always_taken:
+      fprintf(fp, " /* divergent always taken */");
+      break;
    case nir_selection_control_none:
    default:
       break;