### What this PR does / why we need it?
When running memcache in the A2 environment, the logic for registering
memory needs to be added. Additionally, there is a link establishment
conflict between memcache and HCCS during initialization in A2, so the
link should be established in advance.
### Does this PR introduce _any_ user-facing change?
### How was this patch tested?
- vLLM version: v0.13.0
- vLLM main:
7157596103
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Signed-off-by: fangjianwei <f30058701@china.huawei.com>
Co-authored-by: fangjianwei <f30058701@china.huawei.com>