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_srv6_ad_flow.py b/test/test_srv6_ad_flow.py
index f776c71..f1e5109 100644
--- a/test/test_srv6_ad_flow.py
+++ b/test/test_srv6_ad_flow.py
@@ -14,8 +14,12 @@
 from scapy.layers.inet import IP, UDP
 
 from util import ppp
+from config import config
 
 
+@unittest.skipIf(
+    "srv6-ad-flow" in config.excluded_plugins, "Exclude srv6-ad-flow plugin tests"
+)
 class TestSRv6AdFlow(VppTestCase):
     """SRv6 Flow-based Dynamic Proxy plugin Test Case"""