Include subscription config in the OperandRegistry

[horis233]

OperandRegistry have an option to set the Subscription Config

What steps did you take and what happened:
[A clear and concise description of what the bug is.]

What did you expect to happen:

Anything else you would like to add:
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Environment:

• ODLM version:
• Minikube/KIND/OCP version:
• Kubernetes version: (use kubectl version):
• OS (e.g. from /etc/os-release):