This is useful in the system server for better attribution of wakeup events. The logic for encoding the data in the prefix is still maintained ad-hoc and should be standardized in the future. Test: Builds, boots. Manually triggering a wifi wakeup doesn't result in anything unexpected. Test: atest FrameworksNetTests Bug: 265742148 Change-Id: I7ef8a606459bb9f0630f629c01d3b34643ae5319