kernel: Prune allowlist only after boot completed

For unknown reason, packages.list is not reliable during boot for oplus
devices, so we have to disable pruning and re-run pruning after boot.

kernel/pkg_observer.c

@@ -37,7 +37,7 @@ static int ksu_handle_inode_event(struct fsnotify_mark *mark, u32 mask,
         if (ksu_uid_scanner_enabled) {
             ksu_request_userspace_scan();
         }
-        track_throne();
+        track_throne(false);
     }
     return 0;
 }