hostapd: build the DPP frame link choice without IEEE 802.11be

hostapd_dpp_freq_bss() reads hapd->conf->mld_ap, which exists only
with CONFIG_IEEE80211BE, so ucode.c did not build without it. Without
it there is no AP MLD, and the BSS the caller reached answers.

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

package/network/services/hostapd/src/src/ap/ucode.c

@@ -995,6 +995,7 @@ uc_wpa_rkh_derive_key(uc_vm_t *vm, size_t nargs)
 static struct hostapd_data *
 hostapd_dpp_freq_bss(struct hostapd_data *hapd, unsigned int freq)
 {
+#ifdef CONFIG_IEEE80211BE
 	struct hostapd_data *link;
 
 	if (!hapd->conf->mld_ap)
@@ -1003,6 +1004,7 @@ hostapd_dpp_freq_bss(struct hostapd_data *hapd, unsigned int freq)
 	for_each_mld_link(link, hapd)
 		if (link->iface->freq == (int)freq)
 			return link;
+#endif /* CONFIG_IEEE80211BE */
 
 	return hapd;
 }