Merge "Use ArraySet instead of HashSet in IpReachabilityMonitor." into main am: 8d025f8dcf

Original change: https://android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/3119238

Change-Id: Ia77457e913873d616ef0a843775515c8ea2cb9e1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>