OVS-1798 add vpool with cinder plugin assumes fixed path when using devstack - replace hardcoded path with module.__file__
OVS-1798 add vpool with cinder plugin assumes fixed path when using devstack
- replace hardcoded path with module.__file__

sql-analytics/openvstorage,sql-analytics/openvstorage,sql-analytics/openvstorage,sql-analytics/openvstorage