cli: Enable retrieval of keys without specifying the layer
cli: Enable retrieval of keys without specifying the layer

This is required to expose any problems at this stage with automatically
determining the retrieval layer, and that all content is correctly serialized.

Signed-off-by: Michael Ikey Doherty <15e2f59c60e9d84348e78a87e24660774f739add@intel.com>

sofar/buxton,sofar/buxton