scsi: scsi_debug: Add READ BLOCK LIMITS and modify LOAD for tapes

scsi: scsi_debug: Add READ BLOCK LIMITS and modify LOAD for tapes

The changes:

 - Add READ BLOCK LIMITS (512 - 1048576 bytes)

 - Make LOAD send New Media UA (not correct by the standard, but makes
   possible to test also this UA)

Signed-off-by: Kai Mäkisara <Kai.Makisara@kolumbus.fi>
Link: https://lore.kernel.org/r/20250213092636.2510-3-Kai.Makisara@kolumbus.fi
Reviewed-by: John Meneghini <jmeneghi@redhat.com>
Tested-by: John Meneghini <jmeneghi@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>