Add FeatureFuseLiterals as SubTargetFeature for Grace and Olympus#160257

sushgokh wants to merge 2 commits intollvm:mainllvm/llvm-project:mainfrom

sushgokh:features/sgokhale/add-FeatureFuseLiteralssushgokh/llvm-project:features/sgokhale/add-FeatureFuseLiteralsCopy head branch name to clipboard