OWNERS: native toolchain team owns afdo.go

Change-Id: I9dbc03f8cac4bd64d88f4536e4bb7567419507e5
diff --git a/cc/OWNERS b/cc/OWNERS
index 6d7c30a..811d881 100644
--- a/cc/OWNERS
+++ b/cc/OWNERS
@@ -1,4 +1,4 @@
 per-file ndk_*.go = danalbert@google.com
 per-file tidy.go = srhines@google.com, chh@google.com
-per-file lto.go,pgo.go = srhines@google.com, pirama@google.com, yikong@google.com
+per-file afdo.go,lto.go,pgo.go = srhines@google.com, pirama@google.com, yikong@google.com