Merge "Adding NetworkStack Metrics/protos in the Networkstack" into rvc-dev am: 8442e65e am: ab4da705 am: fa5a1755

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/11629108

Change-Id: I0f22e05584fa83caed4023ef16f1205eb0728531