Add janitors to the OWNERS file

Test: TreeHugger
Change-Id: I5de668c41fb7f6acbc1010ec8fffe1f92ff6dfd8

OWNERS

diff --git a/OWNERS b/OWNERS
index 0047438..1e9279a 100644
--- a/OWNERS
+++ b/OWNERS
@@ -2,3 +2,4 @@
 # or people with more than 10 commits last year.
 # Please update this list if you find better owner candidates.
 dwillemsen@google.com
+include platform/system/core:/janitors/OWNERS #{LAST_RESORT_SUGGESTION}