drivers/net: Use static const char * const where possible

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/eth16i.c b/drivers/net/eth16i.c
index 10e39f2..ce22e15 100644
--- a/drivers/net/eth16i.c
+++ b/drivers/net/eth16i.c
@@ -637,7 +637,9 @@
 
 	/* Set interface port type */
 	if(boot) {
-		char *porttype[] = {"BNC", "DIX", "TP", "AUTO", "FROM_EPROM" };
+		static const char * const porttype[] = {
+			"BNC", "DIX", "TP", "AUTO", "FROM_EPROM"
+		};
 
 		switch(dev->if_port)
 		{