Add cargo2android.json am: 72632ec041 am: ee59cb18cf am: f4dc15f8bc

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/pathdiff/+/2747154

Change-Id: If47c7ad58560920c1a19317a11dcf64b6b71e412
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>