Qualcomm AI Engine Direct - Support EPS for cli and fix mv2 to work in QNN2.45

[winskuo-quic]

Summary

• Mobile_Vit_V2 HTP previously only works in QNN2.29. In next QNN release, this issue should be resolved with the eps value provided.
• Support parser eps value for cli.py. This feature is mainly for internal testing purpose.

Test plan

• MV2 gets good accuracy.
• Passing cli.py

cc @cccclai @cbilgin

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/18002

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❌ 1 New Failure

As of commit a614149 with merge base 103deb6 ():

NEW FAILURE - The following job has failed:

• pull / unittest-editable / macos / macos-job (gh)
  export/tests/test_target_recipes.py::TestTargetRecipes::test_linear_model

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[abhinaykukkadapu]

LGTM