Merge "[DK2-3]Do not attemp to stop keepalive on nonexistent network" am: 2601e9f82d

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2411141

Change-Id: I729001700616a602a62aae7d31b77067436c51a8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>