Merge "Set expected pin length in constructor." into udc-dev am: 0754a888...

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

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



Change-Id: Ic72088b094fa01a840628c3f3bfdbd0a8ff50eff
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>