Standalone Lite: Move xla_device utils

[awaelchli]

What does this PR do?

Moves xla_device to Lite standalone package. Requested by reviewer to split out of #14492

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Did you have fun?

I made sure I had fun coding 🙃

cc @Borda @tchaton @rohitgr7 @carmocca @justusschock @awaelchli @akihironitta

[tchaton]

LGTM !