[MTD] support driver model updates

Follow-on patch to the previous driver model patch for the MTD
framework.  This one makes various MTD drivers connect to the
driver model tree, so /sys/devices/virtual/mtd/* nodes are no
longer present ... mostly drivers used on boards I have handy.

Based on a patch from Kay Sievers.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c
index 2297182..29a9011 100644
--- a/drivers/mtd/maps/physmap.c
+++ b/drivers/mtd/maps/physmap.c
@@ -147,6 +147,7 @@
 			devices_found++;
 		}
 		info->mtd[i]->owner = THIS_MODULE;
+		info->mtd[i]->dev.parent = &dev->dev;
 	}
 
 	if (devices_found == 1) {