Migrate to cargo_embargo. am: 221d207ead am: 34f463cc17

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/parking_lot_core/+/2837829

Change-Id: Ib7d541c6a5af6d5286e26bc60d981f26ba900816
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>