Add janitors to the OWNERS file

Test: TreeHugger
Change-Id: I73539deb10de8f54d0984fec2b0289f9088652f0
diff --git a/OWNERS b/OWNERS
index dcc26d0..5059bea 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,2 +1,3 @@
 include platform/system/core:main:/janitors/OWNERS
 
+include platform/system/core:/janitors/OWNERS #{LAST_RESORT_SUGGESTION}