Merge "Report sparse per-iface stats using atrace." into main am: ac871ada08 am: b4a589d64d am: f8846978f0

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2802441

Change-Id: I2ac508c76f4d0fc70d7f93ae31c645485242a861
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>