nl80211: Use wdev id to obtain P2P Device scan results

In order to get a P2P-DEVICE-FOUND event the supplicant needs to
see a peer device during SEARCH and LISTEN phase. The SEARCH
phase does a scan so obtaining the scan results for the P2P Device
interface needs to be supported, i.e., use the wdev_id.

Signed-hostap: Arend van Spriel <arend@broadcom.com>

src/drivers/driver_nl80211.c

@@ -4809,7 +4809,8 @@ nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
 		goto nla_put_failure;
 
 	nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
-	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+	if (nl80211_set_iface_id(msg, &drv->first_bss) < 0)
+		goto nla_put_failure;
 
 	arg.drv = drv;
 	arg.res = res;