Moved labels to enable parallelism pipeline in Luke model
# What does this PR do?

As suggested in the [#22561](https://github.com/huggingface/transformers/issues/22561),moved labels to the same device as logits for the luke model.

@sgugger can u pls review this pr ,there is mistake in the [#22907](https://github.com/huggingface/transformers/pull/22907),I have made necessary changes..
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