[Feat]mtp aclgraph support (#3244)

### What this PR does / why we need it?
Currently, MTP Model in deepseek can not be capture in ACLGraph. This PR
is use to allow MTP to be captured in ACLGraph mode.

### Does this PR introduce _any_ user-facing change?

### How was this patch tested?


- vLLM version: v0.11.0rc3
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0

Signed-off-by: anon189Ty <Stari_Falcon@outlook.com>

vllm_ascend/spec_decode/interface.py

@@ -2,7 +2,7 @@ import enum
 from typing import Optional
 
 import torch
-from vllm.config import VllmConfig
+from vllm.config import CUDAGraphMode, VllmConfig
 from vllm.v1.core.sched.output import SchedulerOutput
 from vllm.v1.sample.metadata import SamplingMetadata
 from vllm.v1.spec_decode.metadata import SpecDecodeMetadata
@@ -33,7 +33,9 @@ class Proposer:
                   with_prefill: bool = False,
                   skip_attn: bool = False,
                   num_reqs: int = 0,
-                  num_tokens_across_dp: Optional[torch.Tensor] = None):
+                  num_tokens_across_dp: Optional[torch.Tensor] = None,
+                  aclgraph_runtime_mode: CUDAGraphMode = CUDAGraphMode.NONE,
+                  batch_descriptor=None):
         """Called by dummy_run in modle_runner"""
         raise NotImplementedError