Add janitors to the OWNERS file

Test: TreeHugger
Change-Id: I46b5bc9dcfecf4174cd2da0d02a62b377eb6328d
diff --git a/OWNERS b/OWNERS
index a4e722f..fd3e34d 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1 +1,2 @@
 [email protected]
+include platform/system/core:/janitors/OWNERS #{LAST_RESORT_SUGGESTION}