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/net/rarp.c b/net/rarp.c
index 3e1c74c..2f5c104 100644
--- a/net/rarp.c
+++ b/net/rarp.c
@@ -46,7 +46,7 @@
 		net_copy_ip(&net_ip, &arp->ar_data[16]);
 		if (net_server_ip.s_addr == 0)
 			net_copy_ip(&net_server_ip, &arp->ar_data[6]);
-		memcpy(NetServerEther, &arp->ar_data[0], 6);
+		memcpy(net_server_ethaddr, &arp->ar_data[0], 6);
 		debug_cond(DEBUG_DEV_PKT, "Got good RARP\n");
 		net_auto_load();
 	}
@@ -77,7 +77,7 @@
 	printf("RARP broadcast %d\n", ++RarpTry);
 	pkt = NetTxPacket;
 
-	eth_hdr_size = NetSetEther(pkt, NetBcastAddr, PROT_RARP);
+	eth_hdr_size = NetSetEther(pkt, net_bcast_ethaddr, PROT_RARP);
 	pkt += eth_hdr_size;
 
 	rarp = (struct arp_hdr *)pkt;
@@ -87,10 +87,10 @@
 	rarp->ar_hln = 6;
 	rarp->ar_pln = 4;
 	rarp->ar_op  = htons(RARPOP_REQUEST);
-	memcpy(&rarp->ar_data[0],  NetOurEther, 6);	/* source ET addr */
+	memcpy(&rarp->ar_data[0],  net_ethaddr, 6);	/* source ET addr */
 	memcpy(&rarp->ar_data[6],  &net_ip,   4);	/* source IP addr */
 	/* dest ET addr = source ET addr ??*/
-	memcpy(&rarp->ar_data[10], NetOurEther, 6);
+	memcpy(&rarp->ar_data[10], net_ethaddr, 6);
 	/* dest IP addr set to broadcast */
 	memset(&rarp->ar_data[16], 0xff,        4);