net: write enetaddr down to hardware on env_callback

If mac-address is changed using "setenv ethaddr ...." command the new
mac-adress also must be written into the responsible ethernet driver.
Signed-off-by: NHannes Schmelzer <oe5hpm@oevsv.at>
Acked-by: NJoe Hershberger <joe.hershberger@ni.com>

net/eth-uclass.c

@@ -227,6 +227,7 @@ static int on_ethaddr(const char *name, const char *value, enum env_op op,
 		case env_op_create:
 		case env_op_overwrite:
 			eth_parse_enetaddr(value, pdata->enetaddr);
+			eth_write_hwaddr(dev);
 			break;
 		case env_op_delete:
 			memset(pdata->enetaddr, 0, 6);