### What this PR does / why we need it?
Update release note & support matrix to add experimental tag for
features and models.
### Does this PR introduce _any_ user-facing change?
### How was this patch tested?
- vLLM version: v0.15.0
- vLLM main:
9562912cea
0.13.0 branch: https://github.com/vllm-project/vllm-ascend/pull/6751
Signed-off-by: zzzzwwjj <1183291235@qq.com>