HookableEvent: Use std::recursive_mutex instead of std::mutex

This fixes a crash when recording fifologs, as the mutex is acquired when BPWritten calls AfterFrameEvent::Trigger, but then acquired again when FifoRecorder::EndFrame calls m_end_of_frame_event.reset(). std::mutex does not allow calling lock() if the thread already owns the mutex, while std::recursive_mutex does allow this.

This is a regression from #11522 (which introduced the HookableEvent system).

Source/Core/Common/HookableEvent.h

@@ -69,7 +69,7 @@ private:
 
   struct Storage
   {
-    std::mutex m_mutex;
+    std::recursive_mutex m_mutex;
     std::vector<HookImpl*> m_listeners;
   };