VPLAY-12061: Cherry-pick closed captioning fixes to federated branch#970

Copilot wants to merge 4 commits intofeature/RDK-60641_federated_2601rdkcentral/aamp:feature/RDK-60641_federated_2601from

copilot/cherry-pick-commits-to-new-featurerdkcentral/aamp:copilot/cherry-pick-commits-to-new-featureCopy head branch name to clipboard