Migrate to cargo_embargo. am: a45f1d19a0 am: fc235e3b42 am: 4bcc020946

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/macaddr/+/2796279

Change-Id: Idbc7919a05fa2bc8dfa865fd1e10d8cdc7538028
Signed-off-by: Automerger Merge Worker <[email protected]>