AAA through http does not work unless you specify HS_AAA=http in the config file

AAA through http does not work unless you specify HS_AAA=http in the config file. 
This was not clear in the config file. This took me some time to figure out. 

 Just updating the config file to make it clear. 

Signed-by: Ramanathan Sivagurunathan <ramzthecoder@gmail.com>