lib,rlc_am_nr: make max retx configurable in AM stress test

lib/src/rlc/rlc_am_nr.cc

@@ -846,7 +846,7 @@ void rlc_am_nr_tx::handle_control_pdu(uint8_t* payload, uint32_t nof_bytes)
           // NACK'ing full SDU.
           // add to retx queue if it's not already there
           if (not retx_queue->has_sn(nack_sn)) {
-            // Have we segmented the SDU alreaty?
+            // Have we segmented the SDU already?
             if ((*tx_window)[nack_sn].segment_list.empty()) {
               rlc_amd_retx_nr_t& retx = retx_queue->push();
               retx.sn                 = nack_sn;

lib/test/rlc/rlc_stress_test.cc

@@ -277,8 +277,10 @@ void stress_test(stress_test_args_t args)
       cnfg_ = srsran::rlc_config_t::default_rlc_um_nr_config(12);
     } else if (args.mode == "AM12") {
       cnfg_                       = srsran::rlc_config_t::default_rlc_am_nr_config(12);
+      cnfg_.am_nr.max_retx_thresh = args.max_retx;
     } else if (args.mode == "AM18") {
       cnfg_                       = srsran::rlc_config_t::default_rlc_am_nr_config(18);
+      cnfg_.am_nr.max_retx_thresh = args.max_retx;
     } else {
       std::cout << "Unsupported RLC mode " << args.mode << ", exiting." << std::endl;
       exit(-1);