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: 2a33bcbd am: 54b641f2

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

Change-Id: I9ced01b962b1da07df1ff07d7b0d98bc8a02e1a2