[SCSI] scsi: Add osd library to build system

OSD in kernel source code is assumed to be at:
drivers/scsi/osd/ with its own Makefile and Kconfig

Add includes to them from drivers/scsi Makefile and Kconfig
Add OSD to MAINTAINERS file

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Reviewed-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 7461eb0..05558b1 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -137,6 +137,8 @@
 obj-$(CONFIG_CHR_DEV_SCH)	+= ch.o
 obj-$(CONFIG_SCSI_ENCLOSURE)	+= ses.o
 
+obj-$(CONFIG_SCSI_OSD_INITIATOR) += osd/
+
 # This goes last, so that "real" scsi devices probe earlier
 obj-$(CONFIG_SCSI_DEBUG)	+= scsi_debug.o