qmi-port: use the new qmi-proxy if available

src/mm-qmi-port.c

@@ -216,6 +216,12 @@ qmi_device_new_ready (GObject *unused,
     GError *error = NULL;
     QmiDeviceOpenFlags flags = QMI_DEVICE_OPEN_FLAGS_VERSION_INFO;
 
+    /* If possible, try to open the QMI port through the QMI proxy daemon, which
+     * allows other applications to also talk to the QMI port properly. */
+#if QMI_CHECK_VERSION (1,7,0)
+    flags |= QMI_DEVICE_OPEN_FLAGS_PROXY;
+#endif
+
     ctx->self->priv->qmi_device = qmi_device_new_finish (res, &error);
     if (!ctx->self->priv->qmi_device) {
         g_simple_async_result_take_error (ctx->result, error);