Merge "[DK2-2]Add flag to control dynamic keepalive mode" am: c795473a80 am: d5c2cb12b5 am: a2630c036f

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2381995

Change-Id: I7de1404f11c8005b0d9bc7370af9c2ac6d649d44
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>