Sound System Rework: Phase 1

. Fixed Sample Rate for DSP
  (Now if your CPU is capable to run game at 100%, you will get pure sound without buzz or static noise)

. Fixed Sample Rate for AI
  (Now if your CPU is capable to run game at 100%, you will get sync'ed video and audio)

. Fixed Backend list for DSPLLE

. Improved Aduio DMA a bit
  (There might be a completely redesign in following phases)

WARNING: The whole rework will take time to complete.
This commit is compilable, but could be unstable.
So you can try it and test it but don't take it as a release rev!

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4717 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Plugins/Plugin_DSP_LLE/Src/DSPConfigDlgLLE.h

@@ -35,6 +35,7 @@ public:
 		     long style = wxDEFAULT_DIALOG_STYLE);
     virtual ~DSPConfigDialogLLE();
     void AddBackend(const char *backend);
+	void ClearBackends();
 
 private:
     DECLARE_EVENT_TABLE();