Fixes #6775 - AK show filters by index's params

This allows Activation Key's show action to filter by the same parameters
that that the index action can filter by. The key issues is to allow
activation-keys be able to be scoped by organization_id when it is
passed in.
Merge pull request #4481 from dustint-rh/ak_filter_org_id_show

Fixes #6775 - AK show filters by index's params