Merge "Add aconfig declarations to f/b droidstubs" into main am: 85e169c3

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2887106



Change-Id: I39dabd7d94a6bbea6e434ff3d7f1df3f227c5c9f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>