test_encrypted_cinder_volumes.* tempest test failes,
when cryptsetup package is not installed.
The following error can be seen in the n-cpu log:
Stderr: u'/usr/bin/nova-rootwrap: Executable not found: cryptsetup
(filter match = cryptsetup)\n'
Change-Id: I86603f1301fa946c8bb22de3e69a2ec1ab7f1ef3
6691907683