xpu: support xpu backend from stock pytorch (>=2.4) (#2825)
Fixes: https://github.com/huggingface/transformers/issues/31237
XPU backend is available in the stock PyTorch starting from
version 2.4, see [1]. This commit extends huggingface accelerate
to support XPU from both IPEX and the stock pytorch. IPEX is being
tried first.
See: https://github.com/pytorch/pytorch/issues/114842
Signed-off-by: Dmitry Rogozhkin <dmitry.v.rogozhkin@intel.com>
