Change a glClear in the OpenGL renderer to improve performance on Mal…

…i chips.

Source/Plugins/Plugin_VideoOGL/Src/Render.cpp

@@ -1542,7 +1542,7 @@ void Renderer::Swap(u32 xfbAddr, FieldType field, u32 fbWidth, u32 fbHeight,cons
 	if(!g_ActiveConfig.bAnaglyphStereo)
 	{
 		glClearColor(0, 0, 0, 0);
-		glClear(GL_COLOR_BUFFER_BIT);
+		glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
 	}
 
 	GL_REPORT_ERRORD();