GenericBuilder: Add a boolean 'succeeded' parameter to finalize

Previously MockModuleBuilder was checking the module state to see if
it should run a final createrepo, but since eafa93037f, finalize() is
called before changing the module state; add an explicit boolean to
GenericBuilder.finalize() to avoid worrying about ordering.

tests/test_utils/test_utils.py

@@ -866,7 +866,7 @@ class DummyModuleBuilder(GenericBuilder):
     def repo_from_tag(self, config, tag_name, arch):
         pass
 
-    def finalize(self):
+    def finalize(self, succeeded=True):
         pass