Merge "Make get/setSystemThresholdReportingRequestedWhileIdle @SystemApi" am: 1f8d32dc29 am: 356872f885 am: 254a335d8e

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1884688

Change-Id: I69a299273afeae5a1081f070c61aaf7dbc93eede