DeepSpeed

f3c8eaca - Add Ascend NPU accelerator support (#3595)

Add Ascend NPU accelerator support (#3595) * add Ascend NPU accelerator support * clean code --------- Co-authored-by: jializheng <jializheng@huawei.com> Co-authored-by: Olatunji Ruwase <olruwase@microsoft.com>