[PATCH] zd1211rw: Mark some data const

This is a backport of Helge Deller's recent patch for wireless-dev.git

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/zd1211rw/zd_rf.c b/drivers/net/wireless/zd1211rw/zd_rf.c
index e6d604b..4ddc2cb 100644
--- a/drivers/net/wireless/zd1211rw/zd_rf.c
+++ b/drivers/net/wireless/zd1211rw/zd_rf.c
@@ -23,7 +23,7 @@
 #include "zd_ieee80211.h"
 #include "zd_chip.h"
 
-static const char *rfs[] = {
+static const char * const rfs[] = {
 	[0]		= "unknown RF0",
 	[1]		= "unknown RF1",
 	[UW2451_RF]	= "UW2451_RF",