Update apidocgen.py parameters in macros.yaml
Update apidocgen.py parameters in macros.yaml

Due to the introduction of the modular schema, apidocgen.py's parameters
need to be updated to point to the new extschema path and remove the XML
schema, since it's no longer needed.

Tags: chg, dev

Change-Id: Icec0feb930f0000193d18ace423a350d5d848444
Signed-off-by: Allan Delgado <f67bb8733c33a4495bbcff2aebe3994fcf6a9b8e@hpe.com>

open-switch/infra_project-config,open-switch/infra_project-config