Merge "Move icu related hidden API flag file contents from frameworks/base" am: 8aa97efe28 am: 531568fbf0 am: 0e64cd1319 am: ca237e9977 am: 5971a19466

Original change: https://android-review.googlesource.com/c/platform/packages/modules/RuntimeI18n/+/1676665

Change-Id: I36112eca7d75221a8f1f9fe501a849889c8cbdd0
tree: 2fe4f2490ff52b0941713fe10adcf9249c365483
  1. apex/
  2. PREUPLOAD.cfg