fixes LLVM backend registration for SystemC

src/vm/llvm/vm_tgc5c.cpp

@@ -4549,13 +4549,13 @@ volatile std::array<bool, 2> dummy = {
             auto* vm = new llvm::tgc5c::vm_impl<arch::tgc5c>(*cpu, false);
             if (port != 0) debugger::server<debugger::gdb_session>::run_server(vm, port);
             return {cpu_ptr{cpu}, vm_ptr{vm}};
-        })/*,
+        }),
         core_factory::instance().register_creator("tgc5c|mu_p|llvm", [](unsigned port, void*) -> std::tuple<cpu_ptr, vm_ptr>{
             auto* cpu = new iss::arch::riscv_hart_mu_p<iss::arch::tgc5c>();
             auto* vm = new llvm::tgc5c::vm_impl<arch::tgc5c>(*cpu, false);
             if (port != 0) debugger::server<debugger::gdb_session>::run_server(vm, port);
             return {cpu_ptr{cpu}, vm_ptr{vm}};
-        })*/
+        })
 };
 }
 }