Merge "Adds option to control whethert to send IPv6 packet on IPv6 only network" am: 454c06e956 am: 882e74b042

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2613049

Change-Id: I7506d242c693deae1539629a93f95f188286c430
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>