[kernel] add AscendC op: lightning_indexer and sparse_flash_attention#4625

wangxiyuan merged 1 commit intovllm-project:mainvllm-project/vllm-ascend:mainfrom

MingYang119:feat/new-add-li-sfaMingYang119/vllm-ascend:feat/new-add-li-sfaCopy head branch name to clipboard