Initialize the AX Thread after the sync objects are initialized

Source/Core/Core/Src/HW/DSPHLE/UCodes/UCode_AX.h

@@ -107,13 +107,13 @@ protected:
 	volatile u16 m_cmdlist[512];
 	volatile u32 m_cmdlist_size;
 
-	std::thread m_axthread;
-
 	// Sync objects
 	std::mutex m_processing;
 	std::condition_variable m_cmdlist_cv;
 	std::mutex m_cmdlist_mutex;
 
+	std::thread m_axthread;
+
 	// Copy a command list from memory to our temp buffer
 	void CopyCmdList(u32 addr, u16 size);