Add policy for 'blank_screen'.

This util allows init to turn off the screen
without any binder dependencies.

Bug: 70846424
Test: manual + init use
Change-Id: I4f41a966d6398e959ea6baf36c2cfe6fcebc00de
diff --git a/private/compat/26.0/26.0.ignore.cil b/private/compat/26.0/26.0.ignore.cil
index 95e617b..325a22a 100644
--- a/private/compat/26.0/26.0.ignore.cil
+++ b/private/compat/26.0/26.0.ignore.cil
@@ -5,6 +5,9 @@
 (typeattributeset new_objects
   ( adbd_exec
     bootloader_boot_reason_prop
+    blank_screen
+    blank_screen_exec
+    blank_screen_tmpfs
     bpfloader
     bpfloader_exec
     broadcastradio_service