getProcessAgeMs: better error messages

There function is jumping to abort on specific boots in two processes
on the device repeatedly. Most likely, it is failing because of ubsan,
but it isn't clear where exactly it is failing, so checking all
assumptions and dumping errors.

Bug: 170456142
Test: adb logcat *:E | grep HidlServiceManagement # no errors on ToT
Test: adb logcat | grep HidlServiceManagement # see registration logs
Change-Id: Ib5c390dd93a9e4f78b42e7172cff74603a89f6cf
1 file changed