[ROCm] Split wvSplitKrc into deterministic/fast kernels, add --fast-skinny-gemm CLI flag, overhaul tests#35183

AndreasKaratzas wants to merge 15 commits into

vllm-project:mainvllm-project/vllm:mainfrom

ROCm:akaratza_skinny_gemm_determinismROCm/vllm:akaratza_skinny_gemm_determinismCopy head branch name to clipboard