cb710: handle DEBUG define in Makefile

Signed-off-by: Pierre Ossman <pierre@ossman.eu>

drivers/misc/cb710/Makefile

+ifeq ($(CONFIG_CB710_DEBUG),y)
+	EXTRA_CFLAGS		+= -DDEBUG
+endif
+
 obj-$(CONFIG_CB710_CORE)	+= cb710.o
 
 cb710-y				:= core.o sgbuf2.o

include/linux/cb710.h

@@ -10,10 +10,6 @@
 #ifndef LINUX_CB710_DRIVER_H
 #define LINUX_CB710_DRIVER_H
 
-#ifdef CONFIG_CB710_DEBUG
-#define DEBUG
-#endif
-
 /* verify assumptions on platform_device framework */
 #define CONFIG_CB710_DEBUG_ASSUMPTIONS