iwinfo: add missing band and mhz properties for libwifi backend

Missing band and mhz properties for scanlist and missing band property
for freqlist are added.

package/network/utils/iwinfo/src/iwinfo_esl.c

@@ -142,6 +142,21 @@ static int phy_to_netdev(const char *phy, char *netdev, size_t size)
 	return ret;
 }
 
+static uint8_t band_libwifi_to_iwinfo(enum wifi_band band)
+{
+	switch (band) {
+	case BAND_2:
+		return IWINFO_BAND_24;
+	case BAND_5:
+		return IWINFO_BAND_5;
+	case BAND_60:
+		return IWINFO_BAND_60;
+	case BAND_6:
+		return IWINFO_BAND_6;
+	default:
+		return 0;
+	}
+}
 
 static int esl_probe(const char *ifname)
 {
@@ -614,12 +629,15 @@ static int esl_get_scanlist(const char *ifname, char *buf, int *len)
 		struct wifi_bss *b = &bsss[i];
 		struct iwinfo_scanlist_entry *e =
 			(struct iwinfo_scanlist_entry *)&buf[i*sizeof(struct iwinfo_scanlist_entry)];
+		int freq = wifi_channel_to_freq_ex(b->channel, b->band);
 
 		memset(e, 0, sizeof(*e));
 		memcpy(e->mac, b->bssid, 6);
 		memcpy(e->ssid, b->ssid, IWINFO_ESSID_MAX_SIZE);
 		e->mode = IWINFO_OPMODE_MASTER;		//FIXME
+		e->band = band_libwifi_to_iwinfo(b->band);
 		e->channel = b->channel;
+		e->mhz = freq > 0 ? freq : 0;
 		e->signal = b->rssi + 0x100;
 		e->quality = b->rssi + 110;
 		e->quality_max = 70;
@@ -700,6 +718,7 @@ static int esl_get_freqlist(const char *ifname, char *buf, int *len)
 			(struct iwinfo_freqlist_entry *)&buf[i*sizeof(struct iwinfo_freqlist_entry)];
 
 		memset(e, 0, sizeof(*e));
+		e->band = band_libwifi_to_iwinfo(ch[i].band);
 		e->channel = ch[i].channel;
 		e->mhz = ch[i].freq;
 		e->restricted = 0;