Merge "Export monolithic hidden api files to the dist" am: f94ff5a36e am: 26efc48ba8 am: 62f16e59e1

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1673385

Change-Id: I250937c71dfcf7868c6074eae28d3ecbf2892e79