Android: Use override consistently

clang-tidy fixes from modernize-use-override check.

Change-Id: I06c9c0b27e178695328dc139a83203aec79528e4
Reviewed-by: Vikas Pachdha <vikas.pachdha@qt.io>

src/plugins/android/androidconfigurations.h

@@ -217,7 +217,7 @@ signals:
 private:
     friend class Android::Internal::AndroidPluginPrivate;
     AndroidConfigurations();
-    ~AndroidConfigurations();
+    ~AndroidConfigurations() override;
     void load();
     void save();