[NPU] Add NPU to support hybrid engine (#4831)
Add NPU to support the hybrid engine, we tested it with the example on
[DeepSpeedExample](https://github.com/microsoft/DeepSpeedExamples/tree/master/applications/DeepSpeed-Chat/training/step3_rlhf_finetuning)
and the results, average reward scores, were aligned with the GPU.
For works about NPU, see
https://github.com/microsoft/DeepSpeed/issues/4567
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Co-authored-by: jializheng <jializheng@huawei.com>
Co-authored-by: wangshuai09 <391746016@qq.com>
Co-authored-by: Olatunji Ruwase <olruwase@microsoft.com>
Co-authored-by: Logan Adams <114770087+loadams@users.noreply.github.com>
Co-authored-by: Michael Wyatt <michaelwyatt@microsoft.com>
