extends cxs_tlm test to support tracing

tests/cxs_tlm/csx_packet_test.cpp

@@ -5,7 +5,6 @@
 #undef CHECK
 #include <catch2/catch_all.hpp>
 #include <deque>
-#include <unordered_map>
 
 using namespace sc_core;
 namespace cxs {
@@ -17,6 +16,7 @@ template <unsigned WIDTH, typename STATE> unsigned run_scenario(STATE& state, un
     auto& dut = factory::get<testbench<WIDTH>>();
     if(burst_factor)
         dut.tx.burst_len.set_value(burst_factor);
+    dut.rx.max_credit.set_value(5);
     dut.rst.write(true);
     sc_start(state.reset_cycles * dut.clk.period());
     dut.rst.write(false);