scsi: nsp_cs: Use true and false instead of TRUE and FALSE

This patch prepares for removal of the drivers/scsi/scsi.h header file. That
header file defines the 'TRUE' and 'FALSE' constants.

Link: https://lore.kernel.org/r/20220218195117.25689-6-bvanassche@acm.org


Cc: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Cc: John Garry <john.garry@huawei.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>