Fixing bug with searching cookie and privileges in security-server.

Fixing bug with searching cookie and privileges in security-server.

[Issue#]        SSDWSSP-71
[Cause]         Fix bug with access to security-server API
                by some root processes.
[Problem]       Access to security server API returns error
                for alarm service.
[Solution]      Removed special treating root processes when searching
                cookies for caller.
[Verification]  Security-serwer should return no error while
                calling security_server_check_privilege()
                with correct parameters. Setting clock alarm should
                return no errors in DLOGUTIL.

Change-Id: I86a950afedd326c021ab00d7ba6a868034d647f9