Update git submodules

Update git submodules

* Update cloudkitty from branch 'master'
  to f524e9261f0da9b1a48a210a53b63c27a68b9374
  - Merge "Check that the limit is never over 5000 in Loki queries"
  - Check that the limit is never over 5000 in Loki queries

    Loki has hard limit of 5000 rows it can return at once, and if the user
    tries to bring more, it will just deny the request. Instead of
    delegating the request denial to Loki, we add the proper checks before
    the queries are done, so we can properly inform the user that more than
    5000 rows is not acceptable.

    Change-Id: I9b98bb7d0c51724b1a63e2ecbf01ffe4a4f1c8e6
    Signed-off-by: Juan Larriba <jlarriba@redhat.com>