ide-cd: move debug defines into header

While at it:
- disable compiling-in debug support by default

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
[bart: fixup patch description]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/ide-cd.h

@@ -8,6 +8,14 @@
 #include <linux/cdrom.h>
 #include <asm/byteorder.h>
 
+#define IDECD_DEBUG_LOG		0
+
+#if IDECD_DEBUG_LOG
+#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, args)
+#else
+#define ide_debug_log(lvl, fmt, args...) do {} while (0)
+#endif
+
 /*
  * typical timeout for packet command
  */