Add metrics (and moar logging) for when a service disables itself.

Test: adb shell logcat -b events | grep sysui_
Test: cts-tradefed run commandAndExit cts-dev -m CtsAutoFillServiceTestCases

Bug: 65376559
Bug: 65856399

Change-Id: Ieb54bb0a58ecd51da663170a12817d33188ac9f0