Tests Cleanup: Fix missing calls to setUpClass/tearDownClass.

Continuation/Part 2 of https://gerrit.fd.io/r/#/c/17092/

Change-Id: Id0122d84eaf2c05d29e5be63a594d5e528ee7c9a
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
diff --git a/test/test_neighbor.py b/test/test_neighbor.py
index c3005cc..c6d9fc6 100644
--- a/test/test_neighbor.py
+++ b/test/test_neighbor.py
@@ -24,6 +24,14 @@
 class ARPTestCase(VppTestCase):
     """ ARP Test Case """
 
+    @classmethod
+    def setUpClass(cls):
+        super(ARPTestCase, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(ARPTestCase, cls).tearDownClass()
+
     def setUp(self):
         super(ARPTestCase, self).setUp()
 
@@ -1411,6 +1419,14 @@
 class NeighborStatsTestCase(VppTestCase):
     """ ARP/ND Counters """
 
+    @classmethod
+    def setUpClass(cls):
+        super(NeighborStatsTestCase, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(NeighborStatsTestCase, cls).tearDownClass()
+
     def setUp(self):
         super(NeighborStatsTestCase, self).setUp()