Blackfin: bf537-stamp: split CF/IDE code out into dedicated cf-ide.c

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/board/bf537-stamp/Makefile b/board/bf537-stamp/Makefile
index 3b875a3..1dbf406 100644
--- a/board/bf537-stamp/Makefile
+++ b/board/bf537-stamp/Makefile
@@ -30,6 +30,7 @@
 LIB	= $(obj)lib$(BOARD).a
 
 COBJS-y	:= $(BOARD).o cmd_bf537led.o
+COBJS-$(CONFIG_BFIN_IDE)   += ide-cf.o
 COBJS-$(CONFIG_CMD_EEPROM) += spi_flash.o
 COBJS-$(CONFIG_CMD_NAND)   += nand.o
 COBJS-$(CONFIG_POST)       += post.o post-memory.o