add rwkv encoder

aky15

2023-10-20 ab653d3871f72f7f6cd1ac3126b3df722f4c7943

 egs/aishell/paraformerbert/local/extract_embeds.sh

@@ -54,6 +54,8 @@
            cat ${local_records_dir}/embeds.${JOB}.shape || exit 1;
        done > ${local_scp_dir_raw}/embeds.shape
    fi

    cp ${local_scp_dir_raw}/embeds.scp  ${raw_dataset_path}/data/${data_set}/embeds.scp
done

echo "embeds is in: ${local_scp_dir_raw}"