Migrate to cargo_embargo. am: 590d9e906d am: e1405e9915

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/pdl-runtime/+/2828319

Change-Id: Ie2ee9493d940e5e3f01827924b415a0b5047471d
Signed-off-by: Automerger Merge Worker <[email protected]>