Call filter_images before save dependencies

save_dependency function needs the image status which is set
by filter_images.

Change-Id: I7aa097c94d59de9389d8a53babe63d8b991a6e23
Closes-bug: 1623291

kolla/image/build.py

@@ -944,6 +944,7 @@ def run_build():
     if conf.save_dependency:
         kolla.build_image_list()
         kolla.find_parents()
+        kolla.filter_images()
         kolla.save_dependency(conf.save_dependency)
         LOG.info('Docker images dependency are saved in %s',
                  conf.save_dependency)