Merge "Accept repeated locale as an input of LocaleList construction." into pi-dev am: 7411fd94a0 am: 394fb1c82f am: 69eec91731 am: 6ad9a7886a am: 9e08b1cad3

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12513538

Change-Id: I91d069f9c2b6e6c26511903a8c8a205014ad0d95