test: Disable NTP test on rhel-x
test: Disable NTP test on rhel-x

timesyncd got disabled now, similar to RHEL 7.

martinpitt/cockpit,cockpit-project/cockpit,mvollmer/cockpit,mvollmer/cockpit,martinpitt/cockpit,andreasn/cockpit,andreasn/cockpit,deryni/cockpit,cockpituous/cockpit,mvollmer/cockpit,garrett/cockpit,cockpit-project/cockpit,deryni/cockpit,cockpituous/cockpit,cockpituous/cockpit,mvollmer/cockpit,martinpitt/cockpit,cockpit-project/cockpit,moraleslazaro/cockpit,deryni/cockpit,moraleslazaro/cockpit,garrett/cockpit,andreasn/cockpit,moraleslazaro/cockpit,cockpit-project/cockpit,andreasn/cockpit,deryni/cockpit,deryni/cockpit,cockpit-project/cockpit,martinpitt/cockpit,cockpituous/cockpit,deryni/cockpit,andreasn/cockpit,moraleslazaro/cockpit,garrett/cockpit,andreasn/cockpit,mvollmer/cockpit,deryni/cockpit,martinpitt/cockpit,moraleslazaro/cockpit,cockpituous/cockpit,cockpituous/cockpit,moraleslazaro/cockpit,moraleslazaro/cockpit,garrett/cockpit,andreasn/cockpit,garrett/cockpit