Merge "Use fallible allocation in UNIQUE_ID generation" am: ef7e220ebd

Original change: https://android-review.googlesource.com/c/platform/system/keymaster/+/2505895

Change-Id: I315d074d629f2eca3a31bed7230222e4b849c3fd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>