Add target definition needed for Rust 1.83 update am: 6cab45fd52

Original change: https://android-review.googlesource.com/c/platform/prebuilts/rust/+/3460674

Change-Id: I9bb99ee01cf8be0613976818ca92d8d109947c52
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>