There is no WLAN_STA_MBO flag, but according to the hostapd source code,
when an STA does not support MBO, cell_capa will be 0. Use this to
indicate MBO support in the get_clients ubus method.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Reviewed-by: David Bauer <mail@david-bauer.net>