Merge "Change config_bandwidthEstimateSource to bandwidth_estimator" into sc-dev am: 0aa410fe am: 7a57d580

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13572890

Change-Id: I35697673d7ccd1ea69f3e4a7159a5339f72c49d4