The only exception is the ikev2/ocsp-no-signer-cert scenario as the
pki command won't sign an OCSP response with a certificate that isn't
the CA certificate or marked as an OCSP signer.
Mainly to test TKM's ability for handling multiple CAs and that the
received intermediate CA certificates are passed in the right order.
But also added a regular scenario where two intermediate CA certificates
are sent by one of the clients.
Tobias Brunner