nir: print skip_helpers for tex instrs

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36610>

src/compiler/nir/nir_print.c

@@ -1997,6 +1997,10 @@ print_tex_instr(nir_tex_instr *instr, print_state *state)
    if (instr->is_sparse) {
       fprintf(fp, ", sparse");
    }
+
+   if (instr->skip_helpers) {
+      fprintf(fp, ", skip_helpers");
+   }
 }
 
 static void