Test typo fixes

Renamed one acl testcase class which was copy-pasted and fixed one
inheritance issue.

Renamed one bihash testcase class.

Change-Id: I70d911ee7872d8d9ddba96c7f721dd099f0152f7
Signed-off-by: juraj.linkes <juraj.linkes@pantheon.tech>
diff --git a/test/test_bihash.py b/test/test_bihash.py
index a5cf065..ff2a898 100644
--- a/test/test_bihash.py
+++ b/test/test_bihash.py
@@ -6,18 +6,18 @@
 from vpp_ip_route import VppIpTable, VppIpRoute, VppRoutePath
 
 
-class TestTCP(VppTestCase):
+class TestBihash(VppTestCase):
     """ Bihash Test Cases """
 
     @classmethod
     def setUpClass(cls):
-        super(TestTCP, cls).setUpClass()
+        super(TestBihash, cls).setUpClass()
 
     def setUp(self):
-        super(TestTCP, self).setUp()
+        super(TestBihash, self).setUp()
 
     def tearDown(self):
-        super(TestTCP, self).tearDown()
+        super(TestBihash, self).tearDown()
 
     def test_bihash_unittest(self):
         """ Bihash Add/Del Test """