recovery: enable permissive_or_unconfined

Switch from using unconfined_domain() to permissive_or_unconfined().
For user builds, or builds with FORCE_PERMISSIVE_TO_UNCONFINED=true,
this is a no-op. For userdebug / eng builds, this will allow us to
collect denials from /proc/last_kmsg.

Change-Id: I41e1a206b2a3b0eee34539bfebfc5deee9e18a42

recovery.te

@@ -8,7 +8,7 @@ type recovery, domain;
 # Otherwise recovery is only allowed the domain rules.
 recovery_only(`
   allow recovery rootfs:file entrypoint;
-  unconfined_domain(recovery)
+  permissive_or_unconfined(recovery)
 
   # Set security contexts on files that are not known to the loaded policy.
   allow recovery self:capability2 mac_admin;