scsi_dh: move to drivers/scsi

Prepare for building scsi_dh.c into the core SCSI module by moving it to
drivers/scsi.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>

drivers/scsi/device_handler/scsi_dh.c → drivers/scsi/scsi_dh.c

@@ -24,7 +24,7 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <scsi/scsi_dh.h>
-#include "../scsi_priv.h"
+#include "scsi_priv.h"
 
 static DEFINE_SPINLOCK(list_lock);
 static LIST_HEAD(scsi_dh_list);