Add maco@ to vold OWNERS.

Bug: N/A
Test: N/A
Change-Id: Ib00991eccbd33e719a64d55da932f7f2bfab7b71
diff --git a/OWNERS b/OWNERS
index bab0ef6..deeceb7 100644
--- a/OWNERS
+++ b/OWNERS
@@ -4,3 +4,4 @@
 ebiggers@google.com
 drosen@google.com
 zezeozue@google.com
+maco@google.com