Updated openstack/openstack
Project: openstack-infra/devstack-gate  3fa2310f02757f2037d95f14668d3bb42fb44720

Set tempest storage protocol for Ceph job

Without this, jobs fail due to tempest using an iSCSI protocol
spec when trying to create a volume.

Change-Id: Ibbf41f443fe8465d89dcc4fc7369887cd7926a40