Merge "aconfig: add a new aconfig storage file flag listing api" into main am: c0102331

Original change: https://android-review.googlesource.com/c/platform/build/+/3065243



Change-Id: Ide49f40e593c0930117192ee559552ece6e2dd27
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>