Enable cinder cache options

Set default TTL for memcache item expiration:
expiration_time = 600
backend_argument = memcached_expire_time:660

Includes oslo_templates/files/~ controller.version ~/oslo/_cache.conf
settings in the [cache] section of cinder.conf

Change-Id: Iff612c45178c64bdf8a6acd489e9f0c99c829ba2
Related-Prod: PROD-26960
10 files changed