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### What this PR does / why we need it?
ref:https://github.com/vllm-project/vllm-ascend/issues/8184
following https://github.com/vllm-project/vllm/pull/31057, add
`requires_piecewise_for_cudagraph` for `AscendStoreConnector`
### Does this PR introduce _any_ user-facing change?
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### How was this patch tested?
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Signed-off-by: Pz1116 <zpbzpb123123@gmail.com>
8bc72a807a