Staging: et131x: Fix warning of prefer ether_addr_copy() in et131x.c

This patch fixes the following checkpatch.pl warnings:
WARNING: "Prefer ether_addr_copy() over memcpy() if the Ethernet addresses are __aligned(2)".
I used pahole to see whether addresses are aligned.
Signed-off-by: Monam Agarwal <monamagarwal123@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/et131x/et131x.c

@@ -3527,7 +3527,7 @@ static int et131x_pci_init(struct et131x_adapter *adapter,
 			goto err_out;
 		}
 	}
-	memcpy(adapter->addr, adapter->rom_addr, ETH_ALEN);
+	ether_addr_copy(adapter->addr, adapter->rom_addr);
 out:
 	return rc;
 err_out:
@@ -3774,7 +3774,7 @@ static struct et131x_adapter *et131x_adapter_init(struct net_device *netdev,
 	adapter->registry_jumbo_packet = 1514;	/* 1514-9216 */
 
 	/* Set the MAC address to a default */
-	memcpy(adapter->addr, default_mac, ETH_ALEN);
+	ether_addr_copy(adapter->addr, default_mac);
 
 	return adapter;
 }