[Bugfix]Fix quant_config input parameter bug in qwenvl series (#3220)

### What this PR does / why we need it?
Fix quant_config input parameter bug in qwenvl series. Currently,
non-instantiated variables should be passed.
### Does this PR introduce _any_ user-facing change?
None
### How was this patch tested?

- vLLM version: v0.10.2
- vLLM main:
https://github.com/vllm-project/vllm/commit/releases/v0.11.0

Signed-off-by: booker123456 <945658361@qq.com>

vllm_ascend/models/qwen2_vl.py

@@ -357,6 +357,6 @@ class AscendQwen2VLForConditionalGeneration(Qwen2VLForConditionalGeneration):
             self.visual = AscendQwen2VisionTransformer(
                 self.config.vision_config,
                 norm_eps=getattr(self.config, "rms_norm_eps", 1e-6),
-                quant_config=self.vllm_config.quant_config,
+                quant_config=vllm_config.quant_config,
                 prefix=maybe_prefix(prefix, "visual"),
             )