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/board/bf537-stamp/bf537-stamp.c b/board/bf537-stamp/bf537-stamp.c
index 32045a9..66e5492 100644
--- a/board/bf537-stamp/bf537-stamp.c
+++ b/board/bf537-stamp/bf537-stamp.c
@@ -39,7 +39,7 @@
 	if (USE_MAC_IN_FLASH) {
 		/* we cram the MAC in the last flash sector */
 		uchar *board_mac_addr = (uchar *)0x203F0000;
-		if (is_valid_ether_addr(board_mac_addr)) {
+		if (is_valid_ethaddr(board_mac_addr)) {
 			memcpy(mac_addr, board_mac_addr, 6);
 			valid_mac = true;
 		}
@@ -47,7 +47,7 @@
 
 	if (!valid_mac) {
 		puts("Warning: Generating 'random' MAC address\n");
-		eth_random_addr(mac_addr);
+		net_random_ethaddr(mac_addr);
 	}
 
 	eth_setenv_enetaddr("ethaddr", mac_addr);