applies cklang-tidy fixes

tests/sim_performance/top.h

@@ -8,17 +8,18 @@
 #ifndef _SIM_PERFORMANCE_TOP_H_
 #define _SIM_PERFORMANCE_TOP_H_
 
-#include <systemc>
-#include <memory>
-#include <vector>
 #include "pkt_sender.h"
 #include "pkt_switch.h"
 #include "types.h"
+#include <memory>
+#include <systemc>
+#include <vector>
 
-class top: public sc_core::sc_module {
+class top : public sc_core::sc_module {
 public:
     top(sc_core::sc_module_name const&, uint8_t, unsigned);
     virtual ~top() = default;
+
 private:
     void run();
     sc_core::sc_clock clk;