Clean up more space/tab mismatches in AudioCommon, Common, and VideoCommon.

Not planning to touch Core since it's the most actively changed part of the project.

Source/Core/VideoCommon/Src/VertexLoader.h

@@ -134,6 +134,6 @@ private:
 	void WriteGetVariable(int bits, Gen::OpArg dest, void *address);
 	void WriteSetVariable(int bits, void *address, Gen::OpArg dest);
 #endif
-};									  
+};
 
 #endif