[automerger skipped] KeyMaster: restore device_unique_attestation am: 351da8db2e am: 227b7e8d38 -s ours

am skip reason: Merged-In I3fafe44371e5b436e4c6e4c1454f2970fc6425ba with SHA-1 19a8ac1cd3 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/keymaster/+/14971041

Change-Id: I974dfb001cb1d72d48fe45451ed22188fda73931