flow: Increase relaxed W routing iterations for qor_chain_no_pred

Avoids spurious regression test failures due to small changes in RR
graph with channel width.

Author: kmurray

vtr_flow/tasks/regression_tests/vtr_reg_weekly/vtr_reg_qor_chain_predictor_off/config/config.txt

@@ -48,4 +48,5 @@ qor_parse_file=qor_standard.txt
 pass_requirements_file=pass_requirements.txt
 
 # Script Parameters
-script_params=-track_memory_usage --routing_failure_predictor off
+# Increase relaxed channel width routing iterations to avoid potential unroutes due to RR graph changes
+script_params=-track_memory_usage -crit_path_router_iterations 80 --routing_failure_predictor off