Support inception_v4 in examples (#203)

Summary:
Pull Request resolved: https://github.com/pytorch/executorch/pull/203

X-link: https://github.com/pytorch/pytorch/pull/108382

Verified that pt2e quant flow matches the fx flow with executorch backend config

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Reviewed By: kimishpatel

Differential Revision: D48889075

fbshipit-source-id: 40bcad1f32354131cf8d1194dca31b9d13dd6011