Merge "Restrict plugins to an existing allowlist" into udc-dev-plus-aosp am: 9267a344

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/soong/+/22896961



Change-Id: I75071f6bf9913fe490f34c1f8b11378157d250e7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>