Redfish event  update test suite Force tags as per standard

Changes:
   - Update Tags names for the test suite

Note: Refer CONTRIBUTING.md for under Tags section
      documentation.

Tested:
   - NA

Change-Id: Id5e8b50b93c3af11390ee8c5b7aa6ef865a6f6dc
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/redfish/systems/eventlog/test_event_service.robot b/redfish/systems/eventlog/test_event_service.robot
index e4a71a8..77bb6ad 100644
--- a/redfish/systems/eventlog/test_event_service.robot
+++ b/redfish/systems/eventlog/test_event_service.robot
@@ -12,6 +12,8 @@
 Test Setup       Test Setup Execution
 Test Teardown    Test Teardown Execution
 
+Force Tags       Event_Service
+
 ***Variables***
 
 # override this default using -v REMOTE_SERVER_IP:<IP> from CLI