Merge "Support multicast routing" into main am: bcc245d5bf

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2817454

Change-Id: Ieec10164c36fb421010b306c52ca3a0f13016c1c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>