[MPS] float16 naming fixed and inexistent mps_logical_not model removed

[DenisVieriu97]

Upstream mps fixes by @versi379

Summary of changes:

• Updated generated model name in MPS Backend documentation.
• Removed extra line running an inexistent model when building mps_executor_runner.

cc @cccclai , @shoumikhin

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/10562

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❌ 2 New Failures

As of commit cff952d with merge base d2d2bf6 ():

NEW FAILURES - The following jobs have failed:

• Check Labels / Check labels (gh)
  RuntimeError: Error checking labels: PR does not have required labels
• pull / android / run-emulator (gh)
  The process '/usr/bin/sh' failed with exit code 255

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[cccclai]

Looks good