[SCSI] include linux/scatterlist.h in scsi_eh.h

Spotted by Paul Jackson <pj@sgi.com>

The error handler rework moved the scatterlist into a globally exposed
structure in scsi_eh.h; unfortunately, the scatterlist include needs
to move from scsi_error.c to scsi_eh.h to allow this to compile
universally.
Acked-by: Paul Jackson <pj@sgi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/scsi_error.c

@@ -24,7 +24,6 @@
 #include <linux/interrupt.h>
 #include <linux/blkdev.h>
 #include <linux/delay.h>
-#include <linux/scatterlist.h>
 
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>

include/scsi/scsi_eh.h

 #ifndef _SCSI_SCSI_EH_H
 #define _SCSI_SCSI_EH_H
 
+#include <linux/scatterlist.h>
+
 #include <scsi/scsi_cmnd.h>
 struct scsi_device;
 struct Scsi_Host;