Update TEST_MAPPING am: 7ca29e57c7 am: 5231cdebf0 am: 617851542c am: 7c7ed4c3d9

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/linked-hash-map/+/2107430

Change-Id: I71202b578f29fe263255df6a6450f8fba45fb34f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>