Fixes EqualLogic volume live migration.

Fixes the issue by enabling the multihost flag for the volume and also
discovering the correct access record to delete when terminating
the connection from the source vm and then deleting the record.

Change-Id: If3580c84a4efd3a58c19e9e74d0a13eb68e67031
Closes-Bug: 1296677
Merge "Fixes EqualLogic volume live migration."