Merge "Improve connection manager logging." into rvc-dev am: 6e8a87e0dc am: 0c5cea2b9d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11371786

Change-Id: If7d17da232374fde8c4877b5b3f26ae837b91cd9