Added openssh-client into bindep
Added openssh-client into bindep

Currently containers with Nova doesn't include openssh-client package,
which is required to perform tempest test e.g.:
tempest.api.compute.admin.test_migrations.MigrationsAdminTest.test_cold_migration.
This package is installed by default in cloud images, but its not
included in container images.

Change-Id: I559883b9f4d9ced0a20444c76f94540d3231cdd9

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