Add missing test bindep on openssl
Add missing test bindep on openssl

nova.virt.xenapi.agent.SimpleDH._run_ssl expects the 'openssl' binary
to be installed. This method is also executed by unit tests.

Change-Id: I5b53e1a97811768c0bbe8f4bdac06591f3739c66

klmitch/nova,klmitch/nova,openstack/nova,mahak/nova,mahak/nova,klmitch/nova,openstack/nova,klmitch/nova,openstack/nova,mahak/nova