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 am: 56ebe0fe

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

Change-Id: I12aa8635704e3e135fa14692e6d8fbc5509a4b52