Merge "aconfig: create java libraries for aconfig proto" am: a2d93ae1

Original change: https://android-review.googlesource.com/c/platform/build/+/2648125



Change-Id: I2f5be25060d812eb086d1c66bdfe59f2eea34022
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>