Accept repeated locale as an input of LocaleList construction. am: 41b1674f am: 8b4cd9ae am: c0b541b0 am: f192ef78

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12540040

Change-Id: Id4fd3857d976f168de7f06a85fa7e45949e6dbbc