Updated openstack/openstack
Project: openstack/cinder  776c94a8a3f49370a519e4ca92fb3071fc86e262

Slow down Storwize driver initialization

Storwize has the limitation that can not burst more than
3 new ssh connection within 1 second.So slow down storwize
driver initialization.

Closes-Bug: #1335722
Change-Id: Id442cd6421ef23b953a3cb45a5f6dd6969064a6e