Policy for overlay_remounter

Note - type definitions moved outside the userdebug_or_eng macro to
avoid breaking user builds. User build (lynx-trunk_staging-user) built
and flashed to avoid a repeat of b/392686305

Test: system/core/fs_mgr/tests/adb-remount-test.sh
Bug: 388912628
Change-Id: Ice404a0b798a4dcbfcafb10d5b114807b21dca10
diff --git a/tests/policy.py b/tests/policy.py
index 98133b7..cf93ed7 100644
--- a/tests/policy.py
+++ b/tests/policy.py
@@ -589,7 +589,7 @@
                 vendor = any(MatchPathPrefix(path, prefix) for prefix in
                              ["/vendor", "/odm"])
                 system = any(MatchPathPrefix(path, prefix) for prefix in
-                             ["/init", "/system_ext", "/product" ])
+                             ["/init", "/system_ext", "/product", "/second_stage_resources" ])
 
                 # only mark entrypoint as system if it is not in legacy /system/vendor
                 if MatchPathPrefix(path, "/system/vendor"):