Skip agnet init process when service disabled
Skip agnet init process when service disabled

Change-Id: Id9b2f8c41c90a44b2edeef76f8748e1527cbc0db
Story: 2003797
Task: 26525

stackforge/monasca-api,openstack/monasca-api,stackforge/monasca-api,stackforge/monasca-api,openstack/monasca-api,stackforge/monasca-api,openstack/monasca-api