[MTD] Makefile fix for mtdsuper

We want drivers/mtd/{mtdcore, mtdsuper, mtdpart}.c to be built and linked
into the same mtd.ko module. Fix the Makefile to ensure this, and remove
duplicate MODULE_ declarations in mtdpart.c, as mtdcore.c already has them.

Signed-off-by: Satyam Sharma <satyam@infradead.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile
index 451adcc..6d958a4 100644
--- a/drivers/mtd/Makefile
+++ b/drivers/mtd/Makefile
@@ -3,9 +3,9 @@
 #
 
 # Core functionality.
+obj-$(CONFIG_MTD)		+= mtd.o
 mtd-y				:= mtdcore.o mtdsuper.o
 mtd-$(CONFIG_MTD_PARTITIONS)	+= mtdpart.o
-obj-$(CONFIG_MTD)		+= $(mtd-y)
 
 obj-$(CONFIG_MTD_CONCAT)	+= mtdconcat.o
 obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o