rt2x00: Unconstify rt2x00dev

Some register accesses need rt2x00dev to be non-const
they all need modifying so the prototype is consistent.

Signed-off-by: Adam Baker <linux@baker-net.org.uk>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/wireless/rt2x00/rt2x00debug.h b/drivers/net/wireless/rt2x00/rt2x00debug.h
index 860e8fa..d37efbd 100644
--- a/drivers/net/wireless/rt2x00/rt2x00debug.h
+++ b/drivers/net/wireless/rt2x00/rt2x00debug.h
@@ -30,9 +30,9 @@
 
 #define RT2X00DEBUGFS_REGISTER_ENTRY(__name, __type)		\
 struct reg##__name {						\
-	void (*read)(const struct rt2x00_dev *rt2x00dev,	\
+	void (*read)(struct rt2x00_dev *rt2x00dev,		\
 		     const unsigned int word, __type *data);	\
-	void (*write)(const struct rt2x00_dev *rt2x00dev,	\
+	void (*write)(struct rt2x00_dev *rt2x00dev,		\
 		      const unsigned int word, __type data);	\
 								\
 	unsigned int word_size;					\