Make indexmap available to product and vendor am: 53485017b0 am: be5751a556 am: a4b6a1a453

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/indexmap/+/2474365

Change-Id: Ida9b56b82349ded0ff0f1d700420584d43854b10
Signed-off-by: Automerger Merge Worker <[email protected]>