gsdx hw: keep the debug counter in sync

Otherwise I'm screwed :p

plugins/GSdx/GSRendererHW.cpp

@@ -386,6 +386,7 @@ void GSRendererHW::Draw()
 			if (m_channel_shuffle) {
 				GL_INS("Channel shuffle effect detected SKIP");
 				GL_POP();
+				s_n += 3; // Keep it sync with SW renderer
 				return;
 			} else {
 				GL_INS("Channel shuffle effect detected");