Add better logging for testSelfManagedConnectionServiceLostFocus.

Intermittent test failures are seen on GSI; adding more logs to better
reveal which assertion is being hit and whether or not the correct
callback is received in the CS.

Flag: NONE test only change
Test: This is a test change
Bug: 390303124
Change-Id: I326d03147cc74c4cb65f98007fadd02c7915f44e