Add logging for functional tests

In patch [1] I changed most of functional tests classes to
inherit from neutron.tests.functional.base.BaseLoggingTestCase
class to enable logging of results for such tests.
I missed two classes then, so this patch fixes it and adds
inherit from same base class to tests which still didn't have
logging enabled.

[1] https://review.openstack.org/#/c/619266/

Change-Id: I9afbe241ee26c8cdc807d2f4fa1c285ff1f07d60

neutron/tests/functional/pecan_wsgi/test_functional.py

@@ -30,6 +30,7 @@ import webtest
 from neutron.api import extensions as exts
 from neutron import manager
 from neutron import tests
+from neutron.tests.functional import base as functional_base
 from neutron.tests.unit import testlib_api
 
 
@@ -67,7 +68,8 @@ def create_test_app():
     return webtest.TestApp(app)
 
 
-class PecanFunctionalTest(testlib_api.SqlTestCase):
+class PecanFunctionalTest(testlib_api.SqlTestCase,
+                          functional_base.BaseLoggingTestCase):
 
     def setUp(self, service_plugins=None, extensions=None):
         self.setup_coreplugin('ml2', load_plugins=False)

neutron/tests/functional/services/l3_router/test_l3_dvr_router_plugin.py

@@ -27,13 +27,15 @@ from neutron_lib import context
 from neutron.api.rpc.handlers import l3_rpc
 from neutron.common import constants as n_const
 from neutron.tests.common import helpers
+from neutron.tests.functional import base as functional_base
 from neutron.tests.unit.plugins.ml2 import base as ml2_test_base
 
 
 DEVICE_OWNER_COMPUTE = constants.DEVICE_OWNER_COMPUTE_PREFIX + 'fake'
 
 
-class L3DvrTestCaseBase(ml2_test_base.ML2TestFramework):
+class L3DvrTestCaseBase(ml2_test_base.ML2TestFramework,
+                        functional_base.BaseLoggingTestCase):
     def setUp(self):
         super(L3DvrTestCaseBase, self).setUp()
         self.l3_agent = helpers.register_l3_agent(