analytics: Collect less data about controllers.

The name field can contain personal information, particularly in the
case of bluetooth devices on OSX which get configured with the user's
full name.

Source/Core/InputCommon/InputConfig.h

@@ -31,6 +31,7 @@ public:
 	ControllerEmu* GetController(int index);
 	void ClearControllers();
 	bool ControllersNeedToBeCreated() const;
+	bool IsControllerControlledByGamepadDevice(int index) const;
 
 	std::string GetGUIName() const { return m_gui_name; }
 	std::string GetProfileName() const { return m_profile_name; }