tests: skip more excluded plugin tests

Check and skip VPP_EXCLUDED_PLUGINS tests for most of plugins.

Type: improvement
Signed-off-by: Dmitry Valter <d-valter@yandex-team.com>
Change-Id: I23fd3666729251c639aa8da72a676058e3f5bb4e
diff --git a/test/test_vrrp.py b/test/test_vrrp.py
index 8575016..41b8268 100644
--- a/test/test_vrrp.py
+++ b/test/test_vrrp.py
@@ -252,6 +252,7 @@
         return pkt
 
 
+@unittest.skipIf("vrrp" in config.excluded_plugins, "Exclude VRRP plugin tests")
 class TestVRRP4(VppTestCase):
     """IPv4 VRRP Test Case"""
 
@@ -884,6 +885,7 @@
         self.assertEqual(rx[VRRPv3].addrlist, [vip])
 
 
+@unittest.skipIf("vrrp" in config.excluded_plugins, "Exclude VRRP plugin tests")
 class TestVRRP6(VppTestCase):
     """IPv6 VRRP Test Case"""