### What this PR does / why we need it?
Fixed the issue where the DCP overlaps the MTP scenario in the ds3.2
scenario.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
cherry-pick from: https://github.com/vllm-project/vllm-ascend/pull/7617
Signed-off-by: weiguihua2 <weiguihua2@huawei.com>