[MIPS] Add MTD device support for Cobalt

This patch has added MTD device support for Cobalt.
Moreover, removes old type FlashROM support.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/cobalt/Makefile b/arch/mips/cobalt/Makefile
index 225ac8f..12589a1 100644
--- a/arch/mips/cobalt/Makefile
+++ b/arch/mips/cobalt/Makefile
@@ -5,5 +5,6 @@
 obj-y	 := irq.o reset.o setup.o
 
 obj-$(CONFIG_EARLY_PRINTK)	+= console.o
+obj-$(CONFIG_MTD_PHYSMAP)	+= mtd.o
 
 EXTRA_AFLAGS := $(CFLAGS)