Derive prerequisite target labels from build metadata am: cee57544bd

Original change: https://googleplex-android-review.googlesource.com/c/platform/tools/asuite/+/18482824

Change-Id: I915c4557afe37f51a52a4ff0c1ff377a0c4b263f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>