px4_param.h: add override to _DEFINE_PARAMETER_UPDATE_METHOD_CUSTOM_PARENT

src/platforms/px4_param.h

@@ -82,7 +82,7 @@ inline static param_t param_handle(px4::params p)
 
 #define _DEFINE_PARAMETER_UPDATE_METHOD_CUSTOM_PARENT(parent_class, ...) \
 	protected: \
-	void updateParamsImpl() { \
+	void updateParamsImpl() override { \
 		parent_class::updateParamsImpl(); \
 		APPLY_ALL(_CALL_UPDATE, __VA_ARGS__) \
 	} \