device: Fix dev_dbg_once macro

There is a copy/paste typo in the dev_dbg_once macro.

It uses dev_info instead of dev_dbg, so use the correct
function instead.
Signed-off-by: Joe Perches <joe@perches.com>
Noticed-by: Marc Finet <m.dreadlock@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

include/linux/device.h

@@ -1156,7 +1156,7 @@ do {									\
 #define dev_info_once(dev, fmt, ...)					\
 	dev_level_once(dev_info, dev, fmt, ##__VA_ARGS__)
 #define dev_dbg_once(dev, fmt, ...)					\
-	dev_level_once(dev_info, dev, fmt, ##__VA_ARGS__)
+	dev_level_once(dev_dbg, dev, fmt, ##__VA_ARGS__)
 
 #define dev_level_ratelimited(dev_level, dev, fmt, ...)			\
 do {									\