l2: l2tp API cleanup

Use consistent API types.

Type: fix

Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
Change-Id: I9015fc60e8d77e5d5ac36bf2862c1fe794addb81
Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
diff --git a/test/test_l2tp.py b/test/test_l2tp.py
index 1d229e6..6ce7de7 100644
--- a/test/test_l2tp.py
+++ b/test/test_l2tp.py
@@ -34,9 +34,8 @@
         self.assertEqual(err, 0)
         err_count = err
 
-        self.vapi.l2tpv3_create_tunnel(client_address=self.pg0.local_ip6n,
-                                       our_address=self.pg0.remote_ip6n,
-                                       is_ipv6=1)
+        self.vapi.l2tpv3_create_tunnel(client_address=self.pg0.local_ip6,
+                                       our_address=self.pg0.remote_ip6)
 
         self.pg0.add_stream(pkt)
         self.pg_start()