Add OWNERS file

Test: TreeHugger
Change-Id: Ib46a082830a5b64c061026bef3635dddeda2c328
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..2e8f086
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1 @@
+include platform/system/core:main:/janitors/OWNERS