Merge "Floss: Fix rustfmt about prelude" into main am: db442d08

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2766987



Change-Id: If79ef44faca9f4f6a5f4a86b09f7dd909e2f601c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>