Patch against libata-dev git tree, upstream branch

Changelog:
  - decode MODE SELECT SCSI command
  - only two attributes are translated to the SET FEATURES
    ATA command: WCE and DRA
  - moved relative position of ata_scsi_rbuf_get+put() to
    make them visible to ata_scsi_mode_select_xlat()

Signed-off-by: Douglas Gilbert <dougg@torque.net>

Doug Gilbert