[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 skip reason: Change-Id I4c2b83e11b27b791b3aa624be68474011b92a269 with SHA-1 709842ab is in history

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

Change-Id: I83a9769aac91c391be8913bdf6abf08e6f0e2dff