Tempest: Use data_utils from tempest.lib

data_utils module has been moved from tempest.common to
tempest.lib.common in upstream tempest recently. Import data_utils
from the tempest.lib to refelct this change.

Change-Id: Id0a0f99376e51ff1c7e2d37ad4d68de3b80da258

vmware_nsx_tempest/tests/nsxv3/api/test_nsx_floating_ip.py

@@ -16,8 +16,8 @@
 from oslo_log import log as logging
 
 from tempest.api.network import base
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest import test
 
 from vmware_nsx_tempest.services import nsxv3_client

vmware_nsx_tempest/tests/nsxv3/api/test_nsx_networks.py

@@ -11,8 +11,8 @@
 #    under the License.
 
 from tempest.api.network import base
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest import test
 
 from vmware_nsx_tempest.services import nsxv3_client

vmware_nsx_tempest/tests/nsxv3/api/test_nsx_routers.py

@@ -13,8 +13,8 @@
 #    under the License.
 
 from tempest.api.network import base_routers as base
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest import test
 
 from vmware_nsx_tempest.services import nsxv3_client

vmware_nsx_tempest/tests/nsxv3/api/test_nsx_security_groups.py

@@ -19,8 +19,8 @@ import six
 import time
 
 from tempest.api.network import base_security_groups as base
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest import test
 
 from vmware_nsx_tempest._i18n import _LI

vmware_nsx_tempest/tests/nsxv3/scenario/test_multi_hv_network_ops.py

@@ -16,8 +16,8 @@ import collections
 
 from oslo_log import log as logging
 
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.scenario import manager
 from tempest import test