Attempt to move mixer to audio common, it's a bit more complicated than I expected

so please check I didn't break anything in hle



git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2756 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Plugins/Plugin_DSP_LLE-testing/Src/Globals.h

@@ -18,15 +18,14 @@
 #ifndef _GLOBALS_H
 #define _GLOBALS_H
 
-#include "pluginspecs_dsp.h"
-#include "Common.h"
+#include "AudioCommon.h"
 #include <stdio.h>
 
 #define WITH_DSP_ON_THREAD		1
 #define DUMP_DSP_IMEM			0
 #define PROFILE					1
 
-extern DSPInitialize g_dspInitialize;
+
 void DSP_DebugBreak();