Migrate to cargo_embargo. am: c6f65f5c23 am: 95524d52b7

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/virtio-bindings/+/2828075

Change-Id: Ica33cc6e1e09ee859d6bb66a465b8ea88b27131f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>