use _to_copy or _to_dim_order_copy in I64toI32 pass

[nathanaelsee]

Summary: When converting an ExportedProgram to EdgeProgramManager via to_edge, _to_dim_order_copy or _to_copy will be used depending on the passed EdgeCompileConfig having _skip_dim_order set to true or false. For example:

compile_config=EdgeCompileConfig(
    _check_ir_validity=False,
    _skip_dim_order=True,
),

The newer _to_dim_order_copy op was added in D53747744/https://github.com/pytorch/executorch/pull/1970.

Adding a param to the pass init to determine if we use the newer op or not.

Differential Revision: D58395616

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As of commit bd3ead3af5a55a18bdae58f654861216a4da1c0a with merge base 22b063d7722d0182bf7fcf36e8896d6c0b241953 (): :green_heart: Looks good so far! There are no failures yet. :green_heart:

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This pull request was exported from Phabricator. Differential Revision: D58395616

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This pull request was exported from Phabricator. Differential Revision: D58395616

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This pull request was exported from Phabricator. Differential Revision: D58395616

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This pull request has been merged in pytorch/executorch@4cf9a46c45baa3daae7473e9b7a9a1c253e64e75.