[DCAEGEN2][OOM] Update k8splugin configs

Top up certservice-api image

Update config for k8splugin 3.4.1:
 - update images of certservice-client
 - add certservice-client secret name to config
 - add certservice-post-processor image to config

CertPostProcessor is an application which appends CMPv2
truststore entries to AAF CertMan truststore and allows
swapping AAF CertMan keystore for CMPv2 keystore.

Issue-ID: DCAEGEN2-2253
Signed-off-by: Jan Malkiewicz <jan.malkiewicz@nokia.com>
Change-Id: Icc7020d8e1431f4ba2f49206b84bf3930d3c2c23
4 files changed