[Bugfix] fix bug about model type of qwen3_vl_8b_instruct_w8a8 (#7383)

### What this PR does / why we need it?
Adapt to the model type of Qwen3-VL-8B-Instruct-W8A8

- vLLM version: v0.17.0
- vLLM main:
4034c3d32e
---------
Signed-off-by: betta18 <jiangmengyu1@huawei.com>
Co-authored-by: betta18 <jiangmengyu1@huawei.com>

tests/e2e/models/configs/Qwen3-VL-8B-Instruct-W8A8.yaml

@@ -0,0 +1,12 @@
+model_name: "vllm-ascend/Qwen3-VL-8B-Instruct-W8A8"
+hardware: "Atlas A2 Series"
+model: "vllm-vlm"
+tasks:
+- name: "mmmu_val"
+  metrics:
+  - name: "acc,none"
+    value: 0.52
+max_model_len: 8192
+batch_size: 32
+gpu_memory_utilization: 0.8
+quantization: ascend