Updated openstack/openstack
Project: openstack-dev/devstack  87e49f1478a0f7e69c83d812e28c1abc05d611d2

Default cinder enable_v1_api to true

As of Juno, Cinder will be deprecating the Cinder V1 API and setting it
to not be enabled by default. We'll make it enabled in devstack to
continue tests while it's supported.

Change-Id: Ia09eed0375a73c69a29b1aa379b5bd9fd3a1f5b7