Arm backend: Make slice-op work without end index

[oscarandersson8218]

If no end index is provided to slice, end index will become huge. Make slice-op handle this by taking min of end and shape[dim] to calculate size attribute.

[pytorch-bot[bot]]

:link: Helpful Links

:test_tube: See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/5782

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:x: 3 New Failures

As of commit da09354a61d012d55ce79210079166654b22f15a with merge base b6e6d062e30455c96ba8b58c52a6200788721296 ():

NEW FAILURES - The following jobs have failed:

• trunk / test-coreml-model / macos-job (gh) Library not loaded: @rpath/liblz4.1.dylib
• trunk / test-models-macos (cmake, llama2, xnnpack-delegation, macos-m1-stable, 90) / macos-job (gh) RuntimeError: Command bash /Users/ec2-user/runner/_work/_temp/exec_script failed with exit code 1
• trunk / test-models-macos (cmake, w2l, xnnpack-quantization-delegation, macos-m1-stable, 90) / macos-job (gh) Library not loaded: @rpath/liblz4.1.dylib

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[digantdesai]

I guess the job timed out or something? If you rebase it will rerun

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[digantdesai]

Still failing Arm CI

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@digantdesai has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

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@digantdesai merged this pull request in pytorch/executorch@befc1a905b7226ffb8d6ef223b47f75721142d89.