Revert "Remove skip entries for bug 923194"

This reverts commit a675090161.

Reason for revert: test is still failing

Change-Id: Ic9de7b65c9c574013c2190a9d1dc2c99ba6c6663

roles/validate-tempest/vars/tempest_skip.yml

@@ -1043,6 +1043,17 @@ known_failures:
         lp: https://bugs.launchpad.net/tripleo/+bug/1919111
     jobs:
       - periodic-tripleo-ci-centos-8-ovb-1ctlr_2comp-featureset020-master
+  - test: tempest.scenario.test_minimum_basic.TestMinimumBasicScenario.test_minimum_basic_scenario
+    deployment:
+      - overcloud
+    releases:
+      - name: master
+        reason: Failed to find floating IP
+        lp: https://bugs.launchpad.net/tripleo/+bug/1923194
+      - name: wallaby
+        reason: Failed to find floating IP
+        lp: https://bugs.launchpad.net/tripleo/+bug/1923194
+    jobs: []
   - test: tempest.api.compute.servers.test_server_actions.ServerActionsTestJSON.test_reboot_server_hard
     deployment:
       - overcloud