Adding vendor_apex_file for /vendor/apex

apexd needs to read /vendor/apex dir and files in it.

Bug: 131190070
Bug: 123378252
Test: 1. Add apex to /vendor/apex
      -> see if boot succeeds with new policy
      2. Add flattened apex to /vendor/apex
      -> see if only root files are labelled as vendor_apex_file

Change-Id: I37795ab6d659ac82639ba5e34d628fe1b5cdb350
diff --git a/private/compat/27.0/27.0.ignore.cil b/private/compat/27.0/27.0.ignore.cil
index 0e830f8..3b9bd52 100644
--- a/private/compat/27.0/27.0.ignore.cil
+++ b/private/compat/27.0/27.0.ignore.cil
@@ -171,6 +171,7 @@
     usbd
     usbd_exec
     usbd_tmpfs
+    vendor_apex_file
     vendor_default_prop
     vendor_init
     vendor_security_patch_level_prop