Fix missing ml. prefix and wrong MIG profiles for p6-b200.48xlarge#399

mollyheamazon merged 2 commits intoaws:mainaws/sagemaker-hyperpod-cli:mainfrom

KeitaW:fix/b200-mig-profile-key-prefixKeitaW/sagemaker-hyperpod-cli:fix/b200-mig-profile-key-prefixCopy head branch name to clipboard