Bug 27593

For the multi-sessioned CD-R having more than 2 sessions, 
``burncd msinfo'' returns zero as the first value instead of 
the first LBA of the *last* track on the media. 

ex.
for the media with
	Starting track = 1, ending track = 3, TOC size = 34 bytes
	track     start  duration   block  length   type
	-------------------------------------------------
	    1   0:02.00   3:40.60       0   16410   data
	    2   3:40.60   2:17.27   16410   10152   data
	    3   5:56.12   0:12.49   26562     799   data
	  170   6:06.61         -   27361       -      -
should return values of ``26562, 27361''; 
however ``0, 27361'' is obtained.

Fix: 

Use `struct ioc_read_toc_entry' and `ioctl(fd, CDIOREADTOCENTRYS, &entry)', 
instead of `struct ioc_read_toc_single_entry' and 
`ioctl(fd, CDIOREADTOCENTRY, &entry)'. 
Then the first LBA of the last track on the media can be obtained.
How-To-Repeat: Type ``burncd msinfo'' for multi sessioned CD-R.