readdirattr should only be enabled if the client enables it via AAPL negotitiation, not for all clients when vfs_fruit is loaded.

This happens because in fruit_readdir_attr() the check

  if (!config->use_aapl) {
    return SMB_VFS_NEXT_READDIR_ATTR(handle, fname, mem_ctx, pattr_data);
  } 

uses the wrong config state "use_aapl" which is alway true by default. Instead we should use:

  if (!config->nego_aapl) {
    return SMB_VFS_NEXT_READDIR_ATTR(handle, fname, mem_ctx, pattr_data);
  }