Fix cinder functional tests job

We have to register cinder objects to run functional tests.

Closes-Bug: #1674627
Change-Id: Ib385382878185c958ea813e324b0e88961662a3a

cinder/tests/functional/__init__.py

@@ -0,0 +1,18 @@
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from cinder import objects
+
+# NOTE(e0ne): Make sure we have all of the objects loaded. We do this
+# at module import time, because we may be using mock decorators in our
+# tests that run at import time.
+objects.register_all()