vdpa: Remove usage of the deprecated ida_simple_xx() API

ida_alloc() and ida_free() should be preferred to the deprecated
ida_simple_get() and ida_simple_remove().

This is less verbose.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Message-Id: <d7534cc4caf4ff9d6b072744352c1b69487779ea.1702230703.git.christophe.jaillet@wanadoo.fr>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>

drivers/vdpa/vdpa.c

@@ -131,7 +131,7 @@ static void vdpa_release_dev(struct device *d)
 	if (ops->free)
 		ops->free(vdev);
 
-	ida_simple_remove(&vdpa_index_ida, vdev->index);
+	ida_free(&vdpa_index_ida, vdev->index);
 	kfree(vdev->driver_override);
 	kfree(vdev);
 }
@@ -205,7 +205,7 @@ struct vdpa_device *__vdpa_alloc_device(struct device *parent,
 	return vdev;
 
 err_name:
-	ida_simple_remove(&vdpa_index_ida, vdev->index);
+	ida_free(&vdpa_index_ida, vdev->index);
 err_ida:
 	kfree(vdev);
 err: