Added support for AGP. Original patch by GreyRogue.

Source/Core/Core/ConfigManager.h

@@ -41,6 +41,8 @@ struct SConfig : NonCopyable
 
 	std::string m_strMemoryCardA;
 	std::string m_strMemoryCardB;
+	std::string m_strGbaCartA;
+	std::string m_strGbaCartB;
 	TEXIDevices m_EXIDevice[3];
 	SIDevices m_SIDevice[4];
 	std::string m_bba_mac;