Make SSM failure logging more consistent

The purpose of this is to help ensure the failure log will be consistent
if a system service fails. This can be used in parsing logcat for tests
(which isn't a great way to test, but it'll do for now).

Test: atest CreateUsersNoAppCrashesTest
Bug: 217246676
Change-Id: I422a380e1da63c4f42687212ac19171819f37ae2