[FEATURE]: PowerMax CSI reverse proxy self generate a certificate when not supplied

[coulof]

Describe the solution you'd like
When cert-manager is not available, the documentation asks the user to manually generate an SSL cert : https://dell.github.io/csm-docs/docs/deployment/helm/drivers/installation/powermax/#csi-powermax-reverse-proxy

It is a good practice that a container that needs a certificate generates it is not present at startup.

If the certificate file is not mounted, openssl genrsa... ; this can be achieved in the ENTRYPOINT & will drastically enhance the customer experience (no more error with DNS, manual CLI, etc.).

Describe alternatives you've considered
Maintain the status quo.

[csmbot]

@coulof: Thank you for submitting this issue!

The issue is currently awaiting triage. Please make sure you have given us as much context as possible.

If the maintainers determine this is a relevant issue, they will remove the needs-triage label and respond appropriately.

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