[automerger skipped] Merge "identity: Fix attestation and documentation problems." into android11-tests-dev am: 4bff38ec97 -s ours

am skip reason: Merged-In I2f8bd772de078556733f769cec2021918d1d7de6 with SHA-1 34abaaefcb is already in history

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1534834

Change-Id: I37e7cd34d1d13ca9a38eebcb9f504100223e3a14