### What this PR does / why we need it?
vllm model runner v2 use uva buffer to prepare input data, but npu
doesn't support uva yet, this pr implement a uvawrapper class to mimic
gpu's uva backend. what's more, this pr make some modifications to adapt
to the newer main branch.
### Does this PR introduce _any_ user-facing change?
no
### How was this patch tested?
- vLLM main:
13397841ab
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Signed-off-by: Ronald1995 <ronaldautomobile@163.com>
[Experimental] Model Runner V2
This directory contains the new model runner which is under active development.
please see Model Runner V2 to get specific plans.
supported vllm version: main@1339784