bugfix for mtp>1

Signed-off-by: zouyida2052 <zouyida2002@gmail.com>

Author: zouyida2052

vllm_ascend/attention/mla_v1.py

@@ -201,6 +201,7 @@ def __init__(self,
             assert self.decode_threshold <= 16, f"decode_threshold exceeded \
                 npu_fused_infer_attention_score TND layout's limit of 16, \
                 got {self.decode_threshold}"
+
         self.reorder_batch_threshold = self.decode_threshold
 
         if self.chunked_prefill_enabled: