macloader: Add one more SEMCO3RD half address

reference here:
http://hwaddress.com/company/samsung-electro-mechanicsthailand-2

Change-Id: Iee368306bf9387b743fb77aa8d83d73c70c51f3e
diff --git a/macloader/macaddr_mappings.h b/macloader/macaddr_mappings.h
index 06d0cd2..523868a 100644
--- a/macloader/macaddr_mappings.h
+++ b/macloader/macaddr_mappings.h
@@ -107,6 +107,7 @@
         "c0:97:27",
         "c0:bd:d1",
         "c8:ba:94",
+        "d0:22:be",
         "d0:25:44",
         "e8:50:8b",
         "ec:1f:72",