feat: add mtp ut case

Signed-off-by: 赵江江 <[email protected]>

Author: 赵江江

vllm_ascend/models/deepseek_mtp.py

@@ -36,9 +36,9 @@
 from vllm.model_executor.models.deepseek_mtp import (
     DeepSeekMTP, DeepSeekMultiTokenPredictor, DeepSeekMultiTokenPredictorLayer,
     SharedHead)
-from vllm.model_executor.models.utils import maybe_prefix
 from vllm.model_executor.models.deepseek_v2 import \
     get_spec_layer_idx_from_weight_name
+from vllm.model_executor.models.utils import maybe_prefix
 from vllm.model_executor.sampling_metadata import SamplingMetadata
 from vllm.sequence import IntermediateTensors