[BugFix] Fix the bug that qwen3 moe doesn't work with aclgraph

[wangxiyuan]

What's the PR does:

1. Move AscendSparseMoeBlock to qwen3 model, since it's only used by qwen3 model.
2. Disable AscendSparseMoeBlock if aclgraph is enabled, AscendSparseMoeBlock doesn't work with aclgraph currently.

• vLLM version: v0.10.0
• vLLM main: vllm-project/vllm@cdfd687

[github-actions]

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[wangxiyuan]

depends on #2181

[codecov]

Codecov Report

❌ Patch coverage is 30.30303% with 23 lines in your changes missing coverage. Please review.
✅ Project coverage is 76.34%. Comparing base (807f089) to head (03b4565).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
vllm_ascend/models/qwen3_moe.py	30.30%	23 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2183   +/-   ##
=======================================
  Coverage   76.34%   76.34%           
=======================================
  Files         110      110           
  Lines       12473    12474    +1     
=======================================
+ Hits         9522     9523    +1     
  Misses       2951     2951           

Flag	Coverage Δ
unittests	76.34% <30.30%> (+<0.01%)	⬆️

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