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/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 3a6adf0..ec8579a 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -1562,7 +1562,7 @@
 		{0}
 	};
 
-	static struct intr_info tp_intr_info_t3c[] = {
+	static const struct intr_info tp_intr_info_t3c[] = {
 		{0x1fffffff, "TP parity error", -1, 1},
 		{F_FLMRXFLSTEMPTY, "TP out of Rx pages", -1, 1},
 		{F_FLMTXFLSTEMPTY, "TP out of Tx pages", -1, 1},