cb710: more cleanup for the DEBUG case.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
index 254e441..79da397 100644
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -32,3 +32,6 @@
 obj-$(CONFIG_MMC_TMIO)		+= tmio_mmc.o
 obj-$(CONFIG_MMC_CB710)	+= cb710-mmc.o
 
+ifeq ($(CONFIG_CB710_DEBUG),y)
+	CFLAGS-cb710-mmc	+= -DDEBUG
+endif