BSND to TND and FA_UPDATE replacement

Signed-off-by: pichangping <[email protected]>

Author: pichangping

vllm_ascend/attention/attention_v1.py

@@ -973,6 +973,7 @@ def _forward_decode_pcp_dcp(self, query: torch.Tensor,
         # Update out&lse
         attn_out = self._npu_attention_update(attn_out_lse_list)
         return attn_out
+
     def _forward_pcp_dcp(self, query: torch.Tensor, key: torch.Tensor,
                          value: torch.Tensor, attn_metadata: AscendMetadata,
                          output: torch.Tensor) -> torch.Tensor: