Merge "Support adding an IPv4 address via RTM_NEWADDR netlink message." into main am: 522197af33

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2921406

Change-Id: I5e90ab7e5909c8cfdb6426b7d140098b7a1378f2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>