Merge "[DK2-3]Do not attemp to stop keepalive on nonexistent network" am: 2601e9f82d am: bd8e4a931e am: df7491cc91

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

Change-Id: I2a939a7d0a816888ed0600d3377556283a2126be
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>