Merge "Fix write_child_nodes macro to enable yaml output of navtree." into mnc-mr-docs am: 5e59208817 am: 7b03568f27
am: 4f89cd61d4

* commit '4f89cd61d4ab391c28b644ee78447cca73e6a15d':
  Fix write_child_nodes macro to enable yaml output of navtree.

Change-Id: Ia9f28bfad570849d7bfcd2b91f1283459d6aff22