Add support of observability in minimal manifest for powermax

[AkshaySainiDell]

Description

Add support of observability in minimal manifest for powermax.

GitHub Issues

List the GitHub issues impacted by this PR:

GitHub Issue #
dell/csm#1449

Checklist:

• I have performed a self-review of my own code to ensure there are no formatting, vetting, linting, or security issues
• I have verified that new and existing unit tests pass locally with my changes
• I have not allowed coverage numbers to degenerate
• I have maintained at least 90% code coverage
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I have maintained backward compatibility

How Has This Been Tested?

Ran PowerMax with Observability E2E metrics tests

[JacobGros]

can we run all existing pmax e2e tests before merging this in?
Tests can run standalone now or should be able to run in sequence if using my branch https://github.com/dell/csm-operator/tree/fix-pmax-e2e

[AkshaySainiDell]

can we run all existing pmax e2e tests before merging this in? Tests can run standalone now or should be able to run in sequence if using my branch https://github.com/dell/csm-operator/tree/fix-pmax-e2e

@JacobGros There will be a separate PR covering powermax e2e.