[SCSI] osd: Kconfig file for in-tree builds

Kconfig file for the drivers/scsi/osd subdirectory.
Adds the following config items:
	config SCSI_OSD_INITIATOR
	config SCSI_OSD_ULD
	config SCSI_OSD_DPRINT_SENSE
	config SCSI_OSD_DEBUG

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Reviewed-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>