Merge "[DU11]Remove NetworkStats hiddden API dependencies" am: dc23434bd5 am: 09b42ebd3c am: 9b2173796b

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1958915

Change-Id: I3e070b527c304900a2cc181efb28cc78fcf52fc3