[automerger skipped] Implement foreach to iterate over system properties am: dde9351666 am: 838025e15c -s ours

am skip reason: Merged-In Ib2c30e6c2e58eb048cae275187acd1f74a8de577 with SHA-1 dde9351666 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/librustutils/+/18296376

Change-Id: Iff766c1d7826bbd6242745aa47cfd369ad00fe76
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>