Update pymark for k8s install only

Currently e2e tests are runs on tops of all k8s envs,
so no sense to run separate k8s calico install only

Change-Id: Ibaf5f06be0d34a68bc9a7211dd9eb42f5d20a225
diff --git a/tcp_tests/tests/system/test_install_k8s.py b/tcp_tests/tests/system/test_install_k8s.py
index bc57e38..b9621ab 100644
--- a/tcp_tests/tests/system/test_install_k8s.py
+++ b/tcp_tests/tests/system/test_install_k8s.py
@@ -193,8 +193,7 @@
                                 'conformance_result.xml'])
     @pytest.mark.grab_versions
     @pytest.mark.fail_snapshot
-    @pytest.mark.cz8116
-    @pytest.mark.k8s_calico
+    @pytest.mark.k8s_calico_only_k8s
     def test_only_k8s_install(self, config, show_step,
                               k8s_deployed, conformance_helper):
         """Test for deploying MCP environment with k8s and check it