Fix parameter receive

In network/base.py, Function receive a parameter name but unuse it.
This patch fix it.

Change-Id: I5d1786069af6aa9e728b18fa802631e38663728a
diff --git a/tempest/api/network/base.py b/tempest/api/network/base.py
index 9e7c795..5c67d68 100644
--- a/tempest/api/network/base.py
+++ b/tempest/api/network/base.py
@@ -270,7 +270,7 @@
         """Wrapper utility that returns a test metering label."""
         body = cls.admin_metering_labels_client.create_metering_label(
             description=description,
-            name=data_utils.rand_name("metering-label"))
+            name=name)
         metering_label = body['metering_label']
         cls.metering_labels.append(metering_label)
         return metering_label