macloader: Add 2 more semco mac ranges

* Found in Samsung Galaxy J4+ and J6+
* Confirmed with https://www.wireshark.org/tools/oui-lookup.html
 70:FD:46 Samsung Electronics Co.,Ltd
 D0:7F:A0 Samsung Electronics Co.,Ltd

Change-Id: Ic067e92b70143b23d15d41d5d40f483aeed19770

macloader/macaddr_mappings.h

@@ -134,9 +134,11 @@ static const struct company_range semco_ranges = {
         "48:13:7e",
         "4c:66:41",
         "51:f6:6b",
+        "70:fd:46",
         "94:76:b7",
         "a4:84:31",
         "cc:07:ab",
+        "d0:7f:a0",
         "d8:c4:e9",
         "e8:3a:12",
         "ec:9b:f3",