Update git submodules

Update git submodules

* Update docs/submodules/aai/aai-common.git from branch 'master'
  to ec86dc93ea46f33d737b01124546884f7048390a
  - Merge "Update schema service to fail to start"
  - Update schema service to fail to start

    when all of the schema failed to load
    so the microservice wouldn't be in a
    bad state and also have the microservice
    dictate what versions of schema they are using

    Issue-ID: AAI-2329
    Change-Id: Ie2e6e2bb3bac37b2ad57ada613e7c0e65647b64e
    Signed-off-by: Kajur, Harish (vk250x) <vk250x@att.com>