ibmvscsi: Replace magic values in set_adpater_info() with defines

Add defines for mad version and mad os_type, and replace the magic
numbers in set_adapter_info() accordingly.

Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Manoj Kumar <manoj@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/ibmvscsi/viosrp.h b/drivers/scsi/ibmvscsi/viosrp.h
index 3d20851..d0f689b 100644
--- a/drivers/scsi/ibmvscsi/viosrp.h
+++ b/drivers/scsi/ibmvscsi/viosrp.h
@@ -221,7 +221,10 @@
 	char srp_version[8];
 	char partition_name[96];
 	__be32 partition_number;
+#define SRP_MAD_VERSION_1 1
 	__be32 mad_version;
+#define SRP_MAD_OS_LINUX 2
+#define SRP_MAD_OS_AIX 3
 	__be32 os_type;
 	__be32 port_max_txu[8];	/* per-port maximum transfer */
 };