Revert "Removed redundant loop in EmuThread::run()"

src/citra_qt/bootmanager.cpp

@@ -31,6 +31,8 @@ void EmuThread::SetFilename(std::string filename)
 void EmuThread::run()
 {
     while (true)
+    {
+        for (int tight_loop = 0; tight_loop < 10000; ++tight_loop)
         {
             if (cpu_running || exec_cpu_step)
             {
@@ -42,6 +44,7 @@ void EmuThread::run()
                     emit CPUStepped();
             }
         }
+    }
 
     Core::Stop();
 }