Add file, line & function information to journald log

Add file, line & function information to journald log

[Issue#] N/A
[Feature/Bug] N/A
[Problem] File, line & function not visible in default journalctl log
[Cause] Default log format does not display this information and other formats
are unreadable
[Solution] File, line & function information added to log message content

[Verification] Create /etc/sysconfig/central-key-manager with following content
"
CKM_LOG_LEVEL=3
CKM_LOG_PROVIDER=JOURNALD
"

Restart the service and see if journalctl logs contain file, line & function
info:
journalctl -f -u central-key-manager

Change-Id: I01389eda9f7db390f6ca00c8f44e1a5c097e59c8