Add MobileNetV2Evaluator to Arm Backend

[tom-arm]

• Add MobileNetV2Evaluator which can measure top-1 and top-5 accuracy of MobileNet V2
• Extend aot_arm_compiler.py to accept more Evaluators
• Improve handling of calibration datasets in aot_arm_compiler.py
• Improve typing

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/6889

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• [DomainsOnly] Jobs fail with GLIBC version not found

❌ 1 New Failure, 1 Unrelated Failure

As of commit 63f3691 with merge base 54899fe ():

NEW FAILURE - The following job has failed:

• pull / test-llama-runner-qnn-linux (fp32, qnn) / linux-job (gh)
  RuntimeError: Command docker exec -t d22c308e4f579c112a7220f24c002460002c4e02b0f8d2da594e3998908a7673 /exec failed with exit code 92

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

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

• trunk / test-models-macos (cmake, llama3_2_text_decoder, portable, macos-m1-stable, 90) / macos-job (gh) (trunk failure)
  ##[error]The operation was canceled.

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[tom-arm]

The failing CI jobs are unrelated to this PR