Make fastrand available to product and vendor am: d106aef69e am: e6d3cd53a1 am: af3508b645 am: f858fea5a2

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/fastrand/+/2476343

Change-Id: Ifc640fb5371565ae4282c789d06e6aff502c21a7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>