SVT: Create a message if managePasswordEncryption is enabled but secret does not exist

[mtamboli]

I am testing new custom encryption feature in WLO/OLO.

I enabled the managePasswordEncryption: true without realizing that I need to create secret first for the custom AES key. In this
case, no action happens but there is not error/warning either in the CR. This defect is to request that a message is added to the CR if the wlp-password-encryption-key does not exist in case of managePasswordEncryption: true in CR.

So I remembered that I had to create the secret for the key and the appropriate secrets were created to use custom encryption.

apiVersion: v1
kind: Secret
metadata:
  name: wlp-password-encryption-key
type: Opaque
stringData:
  passwordEncryptionKey: olomstkey