Merge "Guard system usage reporting by checking the caller has system access."...

Merge "Guard system usage reporting by checking the caller has system access." into sc-dev am: e5a810e1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14987453

Change-Id: I8a8f749722b36ab97600bfd6821515c50c70fe48