Make fallible-iterator available to product and vendor am: 6acfda390b

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/fallible-iterator/+/2475075

Change-Id: Iab86035ade21e47247ad70ff07530f5a2ddeda13
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>