Correctly handling locales with only one region

Before this change, selecting Japanese was saving "ja" as the locale
instead of "ja-JP" which the rest of the system was expecting
(eg. timezone picker).

Bug: 112591365
Test: manual
Change-Id: Ieff161308d393932c90fd7050475bce6ddebfab7
1 file changed
tree: 61ad2c8af0a03625cf3739d8c0de14797f212ece
  1. res/
  2. src/
  3. tests/
  4. Android.mk
  5. AndroidManifest.xml
  6. PREUPLOAD.cfg