[V1][Kernel] Refactor the prefix_prefill kernel so that the caller no longer has to pass in the context lengths#13095

simon-mo merged 7 commits intovllm-project:mainvllm-project/vllm:mainfrom

neuralmagic:sage/prefix-prefill-refactorneuralmagic/vllm:sage/prefix-prefill-refactorCopy head branch name to clipboard