FYI: 4.3 and 4.3-forward branches not building

[John Kinsella]

Before we go to another vote - apidocs build is failing with:

Traceback (most recent call last):
  File "/home/jlk/code/cloudstack/tools/apidoc/gen_toc.py", line 195, in 
<module>
    category = choose_category(fn)
  File "/home/jlk/code/cloudstack/tools/apidoc/gen_toc.py", line 175, in 
choose_category
    (fn, __file__))
Exception: Need to add a category for listOvsElements.xml to 
/home/jlk/code/cloudstack/tools/apidoc/gen_toc.py:known_categories

It’s working on master, so I’ll presume something needs to be cherry picked…