Enable the debug log by default in the IpClientLinkObserver. am: 672efe6db9 am: 11dadb96fa

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/18672131

Change-Id: Iec644fe11e85dbe9ad68301eada8b5aec80605fe
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>