[MTD] add MTD_BLKDEVS Kconfig option

Add a MTD_BLKDEVS Kconfig option to cleanup the makefile a bit

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile
index 1e36b9a..c130e62 100644
--- a/drivers/mtd/Makefile
+++ b/drivers/mtd/Makefile
@@ -15,13 +15,14 @@
 
 # 'Users' - code which presents functionality to userspace.
 obj-$(CONFIG_MTD_CHAR)		+= mtdchar.o
-obj-$(CONFIG_MTD_BLOCK)		+= mtdblock.o mtd_blkdevs.o
-obj-$(CONFIG_MTD_BLOCK_RO)	+= mtdblock_ro.o mtd_blkdevs.o
-obj-$(CONFIG_FTL)		+= ftl.o mtd_blkdevs.o
-obj-$(CONFIG_NFTL)		+= nftl.o mtd_blkdevs.o
-obj-$(CONFIG_INFTL)		+= inftl.o mtd_blkdevs.o
-obj-$(CONFIG_RFD_FTL)		+= rfd_ftl.o mtd_blkdevs.o
-obj-$(CONFIG_SSFDC)		+= ssfdc.o mtd_blkdevs.o
+obj-$(CONFIG_MTD_BLKDEVS)	+= mtd_blkdevs.o
+obj-$(CONFIG_MTD_BLOCK)		+= mtdblock.o
+obj-$(CONFIG_MTD_BLOCK_RO)	+= mtdblock_ro.o
+obj-$(CONFIG_FTL)		+= ftl.o
+obj-$(CONFIG_NFTL)		+= nftl.o
+obj-$(CONFIG_INFTL)		+= inftl.o
+obj-$(CONFIG_RFD_FTL)		+= rfd_ftl.o
+obj-$(CONFIG_SSFDC)		+= ssfdc.o
 
 nftl-objs		:= nftlcore.o nftlmount.o
 inftl-objs		:= inftlcore.o inftlmount.o