Migrate LocalePickerTest to Soong am: e2e39620a4 am: 0c6fa30a9a am: 42a1ac4015 am: 89fb2b6797

Original change: https://android-review.googlesource.com/c/platform/frameworks/opt/localepicker/+/1861853

Change-Id: Icc7b1783019a5de441c3d308d647f5f431db0bd1