overlayfs: deflake presubmit tests

Bug: 142390309
Test: build
Change-Id: Ibf12d5acba39436cf79b7eb3a1fbadb2296b68c4
diff --git a/private/bug_map b/private/bug_map
index 7f8bdcf..e94604a 100644
--- a/private/bug_map
+++ b/private/bug_map
@@ -23,6 +23,7 @@
 netd untrusted_app_27 unix_stream_socket b/77870037
 platform_app nfc_data_file dir b/74331887
 system_server crash_dump process b/73128755
+system_server overlayfs_file file b/142390309
 system_server sdcardfs file b/77856826
 system_server storage_stub_file dir b/112609936
 system_server zygote process b/77856826