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/3c515.c b/drivers/net/3c515.c
index 8a6eb0c..cdf7226 100644
--- a/drivers/net/3c515.c
+++ b/drivers/net/3c515.c
@@ -662,7 +662,9 @@
 		pr_warning(" *** Warning: this IRQ is unlikely to work! ***\n");
 
 	{
-		char *ram_split[] = { "5:3", "3:1", "1:1", "3:5" };
+		static const char * const ram_split[] = {
+			"5:3", "3:1", "1:1", "3:5"
+		};
 		__u32 config;
 		EL3WINDOW(3);
 		vp->available_media = inw(ioaddr + Wn3_Options);