Print QSV info in all logs in a libhb-friendly manner, via hb_scan (was printed in hb_init).

Also, print an error to the log if attempting to print uninitialized QSV info.



git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@5751 b64f7644-9d1e-0410-96f1-a4d463321fa5