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/siemens/common/factoryset.c b/board/siemens/common/factoryset.c
index 7baac3d..d81f548 100644
--- a/board/siemens/common/factoryset.c
+++ b/board/siemens/common/factoryset.c
@@ -271,7 +271,7 @@
 	uint8_t mac_addr[6];
 
 	debug("FactorySet: Set mac address\n");
-	if (is_valid_ether_addr(factory_dat.mac)) {
+	if (is_valid_ethaddr(factory_dat.mac)) {
 		memcpy(mac_addr, factory_dat.mac, 6);
 	} else {
 		uint32_t mac_hi, mac_lo;
@@ -286,7 +286,7 @@
 		mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
 		mac_addr[4] = mac_lo & 0xFF;
 		mac_addr[5] = (mac_lo & 0xFF00) >> 8;
-		if (!is_valid_ether_addr(mac_addr)) {
+		if (!is_valid_ethaddr(mac_addr)) {
 			printf("Warning: ethaddr not set by FactorySet or E-fuse. Set <ethaddr> variable to overcome this.\n");
 			return -1;
 		}
diff --git a/board/siemens/pxm2/board.c b/board/siemens/pxm2/board.c
index 264ba02..4d8ba3c 100644
--- a/board/siemens/pxm2/board.c
+++ b/board/siemens/pxm2/board.c
@@ -222,7 +222,7 @@
 	struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
 #ifdef CONFIG_FACTORYSET
 	int rv;
-	if (!is_valid_ether_addr(factory_dat.mac))
+	if (!is_valid_ethaddr(factory_dat.mac))
 		printf("Error: no valid mac address\n");
 	else
 		eth_setenv_enetaddr("ethaddr", factory_dat.mac);