Skip test Fdb Mac Learning on dualtor setup for github issue #16110 (#…

…16178)

- What is the motivation for this PR?
fdb/test_fdb_mac_learning.py could not run pass at dualtor aa setup
Skip test Fdb Mac Learning on dualtor setup for github issue #16110

- How did you do it?
Add a skip for the issue #16110

- How did you verify/test it?
Run it in internal regression

Change-Id: I98b008015084a7e85f1507a98c67d27ab1f066a2

tests/common/plugins/conditional_mark/tests_mark_conditions.yaml

@@ -829,6 +829,12 @@ fdb/test_fdb_mac_expire.py:
     conditions:
       - "topo_type not in ['t0', 'm0', 'mx']"
 
+fdb/test_fdb_mac_learning.py::TestFdbMacLearning::testFdbMacLearning:
+  skip:
+    reason: "Skip at dualtor-aa topology due to github issue https://github.com/sonic-net/sonic-mgmt/issues/16110"
+    conditions:
+      - "'dualtor-aa' in topo_name and https://github.com/sonic-net/sonic-mgmt/issues/16110"
+
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