Merge "Add tx_bytes and rx_bytes to UpstreamEvent message" am: 0f8a7aaede am: 80e6edbef7

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2547894

Change-Id: Ib2c266e925baac55341fba93115c6f7468b5dd13
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>