system/rust: Wait forever for Rust module to initialize am: edc40e94

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/3484753



Change-Id: I107e0152bb5a2e937130ad25f280e12f88504a09
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>