Merge "Restructure aconfig repo to be a cargo workspace with many crates" into main am: 9f34a481

Original change: https://android-review.googlesource.com/c/platform/build/+/2924191



Change-Id: Ib0ba2a2bba48292298043048acc3ded3da7c71a6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>