Merge "Add first aconfig library inside the framework." into main am: 273f2e906b am: 53845fff49

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2718853

Change-Id: Icbc2e446125e9bf6ef82a854bfbcb791f081bf01
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>