scsi: Sanitize command definitions

Sanitize SCSI command definitions.
Add _10 suffix to READ_CAPACITY, WRITE_VERIFY, VERIFY, READ_LONG,
WRITE_LONG, and WRITE_SAME.
Add new command definitions for LOCATE_10, UNMAP, VARLENGTH_CDB,
WRITE_FILEMARKS_16, EXTENDED_COPY, ATA_PASSTHROUGH, ACCESS_CONTROL_IN,
ACCESS_CONTROL_OUT, COMPARE_AND_WRITE, VERIFY_16, SYNCHRONIZE_CACHE_16,
LOCATE_16, ERASE_16, WRITE_LONG_16, LOAD_UNLOAD, VERIFY_12.
Remove invalid definition of WRITE_LONG_2.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
