Migrate to cargo_embargo. am: 1c0d938b85 am: c117e010d3

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/android_log-sys/+/2796541

Change-Id: I0b5fcf380ee3a8750a0f431e6bb2242ef7181e10
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>