Merge "ID attestation: update docs for a second IMEI" am: 2f2544e410

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2309483

Change-Id: If8c562f250f87f5c014e81b4c4503f1e962d2cf6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>