Move otapreopt_chroot from public to private

We don't need to expose the type to public.

Bug: 359235627
Test: TH
Change-Id: Ie9588af4a22b77ccb65b8115f4dc6f8ecac29fa9
diff --git a/private/compat/202404/202404.cil b/private/compat/202404/202404.cil
index 869deb6..5dc8bc4 100644
--- a/private/compat/202404/202404.cil
+++ b/private/compat/202404/202404.cil
@@ -1,5 +1,6 @@
 ;; This type may or may not already exist in vendor policy. Re-define it here (duplicate
 ;; definitions in CIL will be ignored) - so we can reference it in 202404.cil.
+(type otapreopt_chroot)
 (type vendor_hidraw_device)
 (typeattributeset dev_type (vendor_hidraw_device))