drivers/net/*/: Use static const

Using static const generally increases object text and decreases data size.
It also generally decreases overall object size.

Signed-off-by: Joe Perches <joe@perches.com>
diff --git a/drivers/net/skfp/smt.c b/drivers/net/skfp/smt.c
index 2d9941c..1e1bd0c 100644
--- a/drivers/net/skfp/smt.c
+++ b/drivers/net/skfp/smt.c
@@ -1263,7 +1263,7 @@
 static void smt_fill_policy(struct s_smc *smc, struct smt_p_policy *policy)
 {
 	int	i ;
-	u_char	*map ;
+	const u_char *map ;
 	u_short	in ;
 	u_short	out ;
 
@@ -1271,7 +1271,7 @@
 	 * MIB para 101b (fddiSMTConnectionPolicy) coding
 	 * is different from 0005 coding
 	 */
-	static u_char	ansi_weirdness[16] = {
+	static const u_char ansi_weirdness[16] = {
 		0,7,5,3,8,1,6,4,9,10,2,11,12,13,14,15
 	} ;
 	SMTSETPARA(policy,SMT_P_POLICY) ;