Android Interface submenu: Add Show OSD Messages

Source/Core/Core/ConfigManager.cpp

@@ -807,6 +807,7 @@ void SConfig::LoadDefaults()
   m_audio_stretch = false;
   m_audio_stretch_max_latency = 80;
   bUsePanicHandlers = true;
+  bOnScreenDisplayMessages = true;
 
   iPosX = INT_MIN;
   iPosY = INT_MIN;