[SCSI] add scsi changer driver

This patch adds a device driver for scsi media changer devices.

Signed-off-by: Gerd Knorr <kraxel@bytesex.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/include/linux/major.h b/include/linux/major.h
index 4b62c42..e36a467 100644
--- a/include/linux/major.h
+++ b/include/linux/major.h
@@ -100,6 +100,7 @@
 #define I2O_MAJOR		80	/* 80->87 */
 
 #define SHMIQ_MAJOR		85   /* Linux/mips, SGI /dev/shmiq */
+#define SCSI_CHANGER_MAJOR      86
 
 #define IDE6_MAJOR		88
 #define IDE7_MAJOR		89