QDeclarativeGeoWaypoint: Declare QQmlParserStatus interface

Fix warning:
declarativemaps\qdeclarativegeoroutemodel_p.h(270): Warning: Class QDeclarativeGeoWaypoint implements the interface QQmlParserStatus but does not list it in Q_INTERFACES. qobject_cast to QQmlParserStatus will not work!

Change-Id: I3e9d8e6a68a5bb644a9d6ded8982daffaf985c53
Reviewed-by: Paolo Angelelli <paolo.angelelli@qt.io>

src/location/declarativemaps/qdeclarativegeoroutemodel_p.h

@@ -203,6 +203,7 @@ class Q_LOCATION_PRIVATE_EXPORT QDeclarativeGeoWaypoint : public QGeoCoordinateO
     Q_PROPERTY(QVariantMap metadata READ metadata)
     Q_PROPERTY(QQmlListProperty<QObject> quickChildren READ declarativeChildren DESIGNABLE false)
     Q_CLASSINFO("DefaultProperty", "quickChildren")
+    Q_INTERFACES(QQmlParserStatus)
 
 public:
     QDeclarativeGeoWaypoint(QObject *parent = 0);