am c62dafdf: am 05feded4: am 8144aa2e: Merge "Allow system apps to be granted android.permission.PACKAGE_USAGE_STATS" into mnc-dev

* commit 'c62dafdffc5a382b47d47d5aad528d8500eafb3b':
  Allow system apps to be granted android.permission.PACKAGE_USAGE_STATS