USHIFT-6640: Re-enable gateway api tests

Author: pacevedom

test/suites/optional/gateway-api.robot

@@ -7,7 +7,7 @@ Resource            ../../resources/oc.resource
 Suite Setup         Setup Suite With Namespace
 Suite Teardown      Teardown Suite With Namespace
 
-Test Tags           optional    gateway-api    robot:skip
+Test Tags           optional    gateway-api
 
 
 *** Variables ***