Merge "Increase challenge size in tests." am: dcaa803893 am: a24527be86

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2066892

Change-Id: I0471d9ec037edf8dc6451c7190f34f69b29c5e05
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>