scsi: ipr: Driver version 2.6.4

Bump driver version

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com>
Tested-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
index b7d2e98..e98a87a 100644
--- a/drivers/scsi/ipr.h
+++ b/drivers/scsi/ipr.h
@@ -39,8 +39,8 @@
 /*
  * Literals
  */
-#define IPR_DRIVER_VERSION "2.6.3"
-#define IPR_DRIVER_DATE "(October 17, 2015)"
+#define IPR_DRIVER_VERSION "2.6.4"
+#define IPR_DRIVER_DATE "(March 14, 2017)"
 
 /*
  * IPR_MAX_CMD_PER_LUN: This defines the maximum number of outstanding