Merge "Set expected pin length in constructor." into udc-dev am: 0754a888 am: 7a70f01a am: 1c1ada8f am: f55be91a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23264097



Change-Id: I6fd2ad121a28b611607a7b3e5d89694ea9b09298
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>