### What this PR does / why we need it?
[bugfix]Qwen-Omni quantization model_type bugfix
### Does this PR introduce _any_ user-facing change?
### How was this patch tested?
- vLLM version: v0.16.0
- vLLM main:
15d76f74e2
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Signed-off-by: tanhaoan333 <tanhaoan@huawei.com>