Fixes lesser-used READ VERIFY and READ_16/WRITE_16 translations.

Changes:
#1. ata_scsi_rw_xlat():  
Fix incorrect SCSI to ATA translation for 16 bytes SCSI Read/Write commands. 

#2. Fix ata_scsi_verify_xlat():
Fix incorrect tf->hob_lbax translation.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>