[mlir][ArithToAMDGPU] limit scaling truncf/extf support to gfx950#155431

krzysz00 merged 3 commits intollvm:mainllvm/llvm-project:mainfrom

Muzammiluddin-Syed-ECE:muzasyed/fp4ChipGuardMuzammiluddin-Syed-ECE/llvm-project:muzasyed/fp4ChipGuardCopy head branch name to clipboard