net: cosmetic: Name ethaddr variables consistently

Use "_ethaddr" at the end of variables and drop CamelCase.
Make constant values actually 'const'.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/net/dm9000x.c b/drivers/net/dm9000x.c
index 4de9d41..d1c6f4c 100644
--- a/drivers/net/dm9000x.c
+++ b/drivers/net/dm9000x.c
@@ -342,10 +342,10 @@
 	DM9000_iow(DM9000_ISR, ISR_ROOS | ISR_ROS | ISR_PTS | ISR_PRS);
 
 	printf("MAC: %pM\n", dev->enetaddr);
-	if (!is_valid_ether_addr(dev->enetaddr)) {
+	if (!is_valid_ethaddr(dev->enetaddr)) {
 #ifdef CONFIG_RANDOM_MACADDR
 		printf("Bad MAC address (uninitialized EEPROM?), randomizing\n");
-		eth_random_addr(dev->enetaddr);
+		net_random_ethaddr(dev->enetaddr);
 		printf("MAC: %pM\n", dev->enetaddr);
 #else
 		printf("WARNING: Bad MAC address (uninitialized EEPROM?)\n");