### What this PR does / why we need it?
Fix accuracy for DeepSeek-V2-Lite
### Does this PR introduce _any_ user-facing change?
no
### How was this patch tested?
CI passed
- vLLM version: v0.10.2
- vLLM main:
66072b36db
Signed-off-by: hfadzxy <starmoon_zhang@163.com>