use short lib path, XT libs, lint (#7898)

* Optimized atan2, _softmax, cat, clamp, full, relu, remainder, permute_copy_out ops and updates to use memory_allocator (#7567)

Summary:
Optimized atan2, _softmax, cat, clamp, full, relu, remainder, permute_copy_out ops and updates to use memory_allocator

Pull Request resolved: https://github.com/pytorch/executorch/pull/7567

Test Plan: Unit tested kernels

Reviewed By: hsharma35

Differential Revision: D68446171

Pulled By: zonglinpeng

* use short lib path, XT libs, lint (#7898)

Summary:
Pull Request resolved: https://github.com/pytorch/executorch/pull/7898

titled, will combine with stacked

resolve build-jarvis-xtensa-dsp error in previous diff

https://www.internalfb.com/sandcastle/workflow/2612087783880687743

Reviewed By: hsharma35, mcremon-meta

Differential Revision: D68457025

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Co-authored-by: cad-audio <86048415+cad-audio@users.noreply.github.com>