In the light of extending our eKMS support it will be helpful
to have a tighter use of the word "KMS".
KMS should refer to the actual component that manages keys.
The keyservice, also called KMS in the constellation code,
does not manage keys itself. It talks to a KMS backend,
which in turn does the actual key management.
* Merge Owner and Cluster ID into single value
* Remove aTLS from KMS, as it is no longer used for cluster external communication
* Update verify command to use cluster-id instead of unique-id flag
* Remove owner ID from init output
Signed-off-by: Daniel Weiße <dw@edgeless.systems>
