Make itertools available to product and vendor am: 628255d06a am: 61f5aa6975 am: ff6a718743

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/itertools/+/2476416

Change-Id: I9512fda5ba84d37651116961d0db1a5d9f96cabe
Signed-off-by: Automerger Merge Worker <[email protected]>