Fixing ntp launchtest #521

Job	Run time
diagnostic_aggregator on humble	3m 33s
diagnostic_aggregator on iron	4m 5s
diagnostic_aggregator on rolling	2m 8s
diagnostic_common_diagnostics on humble	3m 39s
diagnostic_common_diagnostics on iron	3m 43s
diagnostic_common_diagnostics on rolling	2m 27s
diagnostic_updater on humble	3m 19s
diagnostic_updater on iron	3m 3s
diagnostic_updater on rolling	2m 0s
self_test on humble	3m 22s
self_test on iron	4m 5s
self_test on rolling	1m 47s
	37m 11s

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