[DO NOT MERGE] Fix biometric test flaky am: 2f180de6aa am: eb2c908aa4

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/25723290

Change-Id: I1389c4d551a8355c8f701adf859176fe43bca26c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>