Merge "Enable Gratuitous Neighbor Discovery feature by default." into main am: ac2304f146 am: 05e9f2605d am: dd27ecaeb8

Original change: https://android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/2651479

Change-Id: I61fd42482420ab45f403e4324fcd5034bd073723
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>