Summary

Following the feedback from TC-SU-2.2 python, the following generic logic should be moved out of TC-SU-2.2 and centralized into the base class so it can be reused by SU 2.3, 2.5, 2.7 and/or others:

BaseClass updates

• Move extend_ota_acls and write_acl into TC_SUTestBase. Feedback link
• Update start_provider to support new provider validation. Feedback link
• Add clear_ota_providers to base class for consistent cleanup. Feedback link