### What this PR does / why we need it?
The precision of deepseek torchair is broken by #3465 , which due to the origin patch or rmsnorm in torchair. This PR fixes the precision of deepseek torchair.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
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Signed-off-by: hust17yixuan <303660421@qq.com>
### What this PR does / why we need it?
This PR prefetchs the weight of mlp layers in Qwen Dense Models to
optimize the performance in Decode phase mainly.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
CI passed with new added/existing test.
- vLLM version: main
- vLLM main:
a1213fae5f
Signed-off-by: rjg-lyh <1318825571@qq.com>
Co-authored-by: Shuming19 <313093131@qq.com>
