iface-modem: export update_unlock_retries outside MMIfaceModem

This patch exports the internal function update_unlock_retries() in
MMIfaceModem as mm_iface_modem_update_unlock_retries(), which later
allows us to call it from other classes.

src/mm-iface-modem.c

@@ -2926,9 +2926,9 @@ set_lock_status (MMIfaceModem *self,
     }
 }
 
-static void
-update_unlock_retries (MMIfaceModem *self,
-                       MMUnlockRetries *unlock_retries)
+void
+mm_iface_modem_update_unlock_retries (MMIfaceModem *self,
+                                      MMUnlockRetries *unlock_retries)
 {
     MmGdbusModem *skeleton = NULL;
     GVariant *previous_dictionary;
@@ -3016,7 +3016,7 @@ load_unlock_retries_ready (MMIfaceModem *self,
         g_error_free (error);
     } else {
         /* Update the dictionary in the DBus interface */
-        update_unlock_retries (self, unlock_retries);
+        mm_iface_modem_update_unlock_retries (self, unlock_retries);
         g_object_unref (unlock_retries);
     }
 

src/mm-iface-modem.h

@@ -414,6 +414,9 @@ MMModemLock mm_iface_modem_update_lock_info_finish (MMIfaceModem *self,
                                                     GAsyncResult *res,
                                                     GError **error);
 
+void mm_iface_modem_update_unlock_retries (MMIfaceModem *self,
+                                           MMUnlockRetries *unlock_retries);
+
 /* Request signal quality check update.
  * It will not only return the signal quality status, but also set the property
  * values in the DBus interface. */