Merge "Check in BUILD files in prebuilts/rust and...

Merge "Check in BUILD files in prebuilts/rust and external/bazelbuild-rules_rust" into main am: 95e8fe9e

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2705474



Change-Id: Ic549d541eda3a085922d473885d1b47d4bee71f1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>