Update git submodules

Update git submodules

* Update docs/submodules/aaa from branch 'master'
  to 2308ca5f6f4cee95d97d3da5b96a1679b4b902ca
  - Merge "Eliminate infinite busy wait in KarafIniWebEnvironment"
  - Eliminate infinite busy wait in KarafIniWebEnvironment

    We've seen SFT's hang on shut down due to the busy wait if the
    blueprint container for aaa-shiro fails or is destroyed while
    being created. The busy wait blocks startup of the web app and also
    blocks on shut down causing the hang. To alleviate this, use a
    Future to obtain the AAAShiroProvider. Also added a BundleActivator
    to register a blueprint event listener that fails the Future
    exceptionally when the blueprint container is destroyed.

    Change-Id: I9198579aa026ab685af73ee624c353d7097ba86e
    Signed-off-by: Tom Pantelis <tompantelis@gmail.com>