mac80211: declare missing config parameter mesh_id

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39766 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh

@@ -50,6 +50,7 @@ drv_mac80211_init_iface_config() {
 	config_add_int dtim_interval
 
 	# mesh
+	config_add_string mesh_id
 	config_add_int $MP_CONFIG_INT
 	config_add_boolean $MP_CONFIG_BOOL
 	config_add_string $MP_CONFIG_STRING