rstp: Use rstp_identifier instead of uint8_t array.
      Use uintXX_T and ovs_beXX types.
      Remove rstp_priority_vector memcmp and memcpy.
rstp: Remove old code from set_port_id__().
rstp: Use rstp_times_equal() to compare struct rstp_times.
rstp: Rename rstp_priority_vector_is_superior() into compare_rstp_priority_vector().
      Merge SUPERIOR_ABSOLUTE and SUPERIOR_SAME_DES.
rstp: Remove old code from compare_rstp_priority_vector().
      Add comment to compare_rstp_priority_vector() function.
rstp: Delete get_id_string_from_uint8_t() function.
rstp: Remove bit shifts from rstp states.
rstp: Use 0xffffffffffffULL to obtain bridge_address from bridge_identifier and
      to reset bridge_priority.
rstp: Use uintXX_T types instead of unsigned int.
rstp: Simplify record_times() function.
rstp: Use uintXX_t types in struct ofproto_rstp_settings.
Revert "rstp: Remove bit shifts from rstp states."

This reverts commit c88b3f8aacca08370a19e9dc46ab4107f76514d6.
rstp: Simplify rstp_is_root_bridge() function.
rstp: Use root_port_id in rstp_get_root_port() to identify the root port.
rstp: Remove 'done' from port_configure_rstp().
rstp: Copy whole rstp struct instead of fields in reinitialize_rstp__().
      Remove useless xstrdup().
rstp: Add bpdu size values.