scan: read rssi not rcpi from report

src/scan.c

@@ -338,7 +338,7 @@ int add_scanres_element(struct controller *c,
 				? sizeof(nbr->ssid) : ssidlen + 1);
 		snprintf(nbr->ssid, len, "%s", (char *)&tv_data[offset]);
 		offset += ssidlen;
-		nbr->rssi = rcpi_to_rssi(tv_data[offset]);
+		nbr->rssi = (int8_t)tv_data[offset];
 		offset++;
 		bw_len = tv_data[offset++];
 		if (bw_len > sizeof(buf)) {