Ethos Driver Backwards Compatibility (#19116)

[gkrulce]

Summary:

The version of ethos driver that supports multiple devices / multiple
NPUs has a few breaking API changes. Installing backwards compatibility hooks
so that Executorch continues to work with both old and new driver code.

It adds the new APIs as weak definitions and redirects to old driver code. If
new driver code is available, those definitions override the weak definitions.

Driver code ref:
https://gitlab.arm.com/artificial-intelligence/ethos-u/ethos-u-core-driver/-/blob/experimental/multidevice/README.md?ref_type=heads#experimental---multi-device

Differential Revision: D102359186

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/19116

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❌ 1 Awaiting Approval, 3 Cancelled Jobs, 3 Unrelated Failures

As of commit 140366d with merge base c1d482e ():

AWAITING APPROVAL - The following workflow needs approval before CI can run:

• Build Presets (gh)

CANCELLED JOBS - The following jobs were cancelled. Please retry:

• trunk / test-custom-ops-macos (cmake) / macos-job (gh)
• trunk / test-models-macos-coreml (edsr) / macos-job (gh)
• trunk / test-models-macos-cpu (llama3_2_vision_encoder, portable) / macos-job (gh)
  ##[error]The operation was canceled.

BROKEN TRUNK - The following jobs failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• pull / unittest / windows / windows-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• pull / unittest-editable / windows / windows-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• trunk / unittest-release / windows / windows-job (gh) (trunk failure)
  ##[error]The operation was canceled.

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[meta-codesync]

@gkrulce has exported this pull request. If you are a Meta employee, you can view the originating Diff in D102359186.

[pytorch-bot]

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