Add janitors to the OWNERS file

Test: TreeHugger
Change-Id: Ice909a354251f8008d93444199375e467c0f4525
diff --git a/OWNERS b/OWNERS
index 3f20f54..e3826a7 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,2 +1,3 @@
 [email protected]
 [email protected]
+include platform/system/core:/janitors/OWNERS #{LAST_RESORT_SUGGESTION}