Fix cinder functional tests job
We have to register cinder objects to run functional tests.
Closes-Bug:
+# 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()
