Use trace file stem as SystemC module name

There were many reports of users worrying about the warning message.

src/simulator/simulator/Simulator.cpp

@@ -131,7 +131,7 @@ Simulator::instantiateInitiator(const DRAMSys::Config::Initiator& initiator)
                 auto player = std::make_unique<StlPlayer>(
                     config, tracePath.c_str(), *traceType, storageEnabled);
 
-                return std::make_unique<RequestIssuer>(config.name.c_str(),
+                return std::make_unique<RequestIssuer>(tracePath.stem().c_str(),
                                                        std::move(player),
                                                        memoryManager,
                                                        interfaceClk,