Merge "Accept repeated locale as an input of LocaleList construction." into rvc-dev am: 5cacc10912 am: c6b94720da

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12513781

Change-Id: I6f83367f4ea2150b79a538c609cf98a0e12f3247