Update Android.bp by running cargo_embargo am: 9aab4c97c6

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/rand_core/+/3208593

Change-Id: I92c177d6e5413edcfc0d361ecdf400d5b7428464
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>