Make bencher available to product and vendor am: 78e747fbec am: 973bc6c580

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/bencher/+/2476324

Change-Id: I752a59a06c1993bb33453737488e0b63c559d43b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>