Rewrite cdrom_checkdrive() function in Disk_Drive_Functions.cpp to fix Jukeboxes
Currently, the cdrom_checkdrive() function in Disk_Drive_Functions always returns CDS_DRIVE_NOT_READY, causing the Powerfile_C200 driver to mark the internal disk in the Sony VGP-XL1B3 jukebox as empty.
For now, I was able to ifdef around it to always return DVD, but this function needs to be fixed, as some semantics have changed in the underlying linux kernel.
-Thom