Update git submodules

Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Fixed failing router test on Aricent pod.

    Removed project ID from network lookup for the router_external
    network as the test test_create_router_admin_user_to_new_project()
    as the OpenStackRouter object was including its own project ID to
    the API call causing the network lookup to fail.
    Note: this is the only pod where this bug has reared it's ugly head.

    Change-Id: I159252b3f3c3bc418f9947710e9e97d8471ec538
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>