interface: T4203: bugfix Q-in-Q interface parsing
interface: T4203: bugfix Q-in-Q interface parsing

Commit 0e23fc10 ("interface: T4203: switch to new recursive node_changed()
implementation") switched to a new implementation to retrieve nested changes
under a CLI node. Unfortunately the new API was not called - instead the
old one was used.

vyos/vyos-1x,vyos/vyos-1x,vyos/vyos-1x,vyos/vyos-1x