mm-broadband-modem-qmi: always trigger an operator description update

Currently, the operator description update is only triggered once in the
entire update process. But this can lead to a operator description
updated at the wrong time. And is therefore possibly wrong.

The deprecated API call 'qmi_client_nas_get_serving_system' always triggers
an update of the operator description in there subfunction of the callback.

This is missing for the API call 'qmi_client_nas_get_system_info'. To solve
this, an update is now also triggered in the subfunction callback if there
is new system info available.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

src/mm-broadband-modem-qmi.c

@@ -3969,6 +3969,9 @@ common_process_system_info_3gpp (MMBroadbandModemQmi              *self,
     /* Update act and location info */
     mm_iface_modem_3gpp_update_access_technologies (MM_IFACE_MODEM_3GPP (self), act);
     mm_iface_modem_3gpp_update_location (MM_IFACE_MODEM_3GPP (self), lac, tac, cid);
+
+    /* Update operator name and operator description */
+    mm_iface_modem_3gpp_reload_current_registration_info (MM_IFACE_MODEM_3GPP (self), NULL, NULL);
 }
 
 static gboolean