### What this PR does / why we need it?
Add OOT platform E2E test case to be run in the vllm buildkite pipeline.
Note: added test case is not run in vllm-ascend CI.
### Does this PR introduce _any_ user-facing change?
NA
- vLLM version: v0.10.2
- vLLM main:
f225ea7dd9
Signed-off-by: leo-pony <nengjunma@outlook.com>