Update certain APIs to require the REPORT_USAGE_STATS permission.

Add requirement of either being the system or having the
REPORT_USAGE_STATS permission in order to call any report events related
APIs. This includes the reportChooserSelection and reportUserInteraction
APIs.

Also add the permission to Shell so the APIs can be tested via CTS.

Bug: 296056771
Bug: 218679369
Test: atest CtsUsageStatsTest
Change-Id: I3b28e00b9da73cd4bc051f3c5e03e29a734a1df0