Update git submodules

* Update docs/submodules/aai/aai-common.git from branch 'master'
  to 6aacebe5f9cd895fe6fbf48799ce04f48eda42eb
  - Upversion to 1.6.1
    
    Issue-ID: AAI-2699
    Signed-off-by: Jimmy Forsyth <jf2512@att.com>
    Change-Id: Iae42d82b40c9763ff09674e83d35a65fe6bcc0df
    
1 file changed