Unable to authenticate image-registry storage backend using application credentials in RHOCP 4

Issue

• Unable to use Swift backend for image-registry when using application credentials.
• Unable to use Cinder backend when using application credentials
• The cluster-image-registry-operator is stuck in DEGRADED state when using application credentials in RHOCP on RHOSP.
• How to configure image-registry to authenticate Swift using application credentials?

• The image-registry pods fail with:

  Failed to provision volume with StorageClass "standard": unable to initialize cinder client for region: regionOne, err: cloud provider is not initialized: cannot initialize cloud provider using data from the secret: You must provide a password to authenticate