api-ref: typo service.disable_reason
api-ref: typo service.disable_reason

'disable_reason' should be 'disabled_reason'

Change-Id: Ie320d7a7eb675bfdba2c907fd44b99c02974d343

klmitch/nova,klmitch/nova,klmitch/nova,mahak/nova,klmitch/nova,mahak/nova,openstack/nova,rahulunair/nova,openstack/nova,mahak/nova,rahulunair/nova,openstack/nova,rahulunair/nova