DPP2: Support QR mutual auth scan-during-auth-exchange (hostapd)

Extend DPP authentication session search for the DPP_QR_CODE command to
cover the ongoing exchanges in Controller/Responder. This was previously
done for wpa_supplicant, but not for hostapd, so complete this support
on the hostapd side.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>

src/ap/dpp_hostapd.c

@@ -66,6 +66,10 @@ int hostapd_dpp_qr_code(struct hostapd_data *hapd, const char *cmd)
 					wpabuf_len(hapd->dpp_auth->resp_msg));
 	}
 
+#ifdef CONFIG_DPP2
+	dpp_controller_new_qr_code(hapd->iface->interfaces->dpp, bi);
+#endif /* CONFIG_DPP2 */
+
 	return bi->id;
 }