Enable rust backend for android.hardware.bluetooth(.audio) am: 00035204dc

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/3427923

Change-Id: Iec3675c19d497edd5628664dd3d29d290e82c4d0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>