Update Android.bp by running cargo_embargo am: 604ca98e83 am: 54cb25a535

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/base64/+/3093035

Change-Id: I1bae945a5a000ce10dabaa538e01df194218c782
Signed-off-by: Automerger Merge Worker <[email protected]>