Fix resource type in ObjectStorage role
Fix resource type in ObjectStorage role

The currently used resource type does not exist, therefore changing it.

Closes-Bug: 1691021
Change-Id: Iaf18af546817e0cf6cdfafcc5c54ab4d1a0f819d

dprince/tripleo-heat-templates,openstack/tripleo-heat-templates,dprince/tripleo-heat-templates,openstack/tripleo-heat-templates