hostapd: disable ft_psk_generate_local for non-PSK networks

Without this commit, ft_psk_generate_local is enabled for non-PSK
networks by default. This breaks 802.11r for EAP networks.

Disable ft_psk_generate_local by default for non-PSK networks resolves
this misbehavior.

Reported-by: Martin Weinelt <martin@darmstadt.freifunk.net>
Signed-off-by: David Bauer <mail@david-bauer.net>
Tested-by: Martin Weinelt <martin@darmstadt.freifunk.net>

package/network/services/hostapd/files/hostapd.sh

@@ -510,10 +510,18 @@ hostapd_set_bss_options() {
 			json_get_vars mobility_domain ft_psk_generate_local ft_over_ds reassociation_deadline
 			
 			set_default mobility_domain "$(echo "$ssid" | md5sum | head -c 4)"
-			set_default ft_psk_generate_local 1
 			set_default ft_over_ds 1
 			set_default reassociation_deadline 1000
 
+			case "$auth_type" in
+				psk|sae|psk-sae)
+					set_default ft_psk_generate_local 1
+				;;
+				*)
+					set_default ft_psk_generate_local 0
+				;;
+			esac
+
 			append bss_conf "mobility_domain=$mobility_domain" "$N"
 			append bss_conf "ft_psk_generate_local=$ft_psk_generate_local" "$N"
 			append bss_conf "ft_over_ds=$ft_over_ds" "$N"