[automerger skipped] Clarify NNAPI control flow shape constraints RESTRICT...

[automerger skipped] Clarify NNAPI control flow shape constraints RESTRICT AUTOMERGE am: dfe15258 am: 22995317 -s ours am: deb62eef -s ours am: 82eee469 -s ours am: 7046810e -s ours

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Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1351586

Change-Id: I8ff5847f4bac0290778e89b791435d43e6a7b408