Update git submodules

* Update docs/submodules/fuel from branch 'stable/euphrates'
  - Identify jump host bridges based on IDF / PDF nets

    - minor refactor of runtime templates parsing to allow var expansion;
    - parse <pod_config.yml> into shell vars, match dynamically networks
      from PDF to IP addresses on bridges of current jumphost;
    - keep old '-B' parameter in <ci/deploy.sh>, use it for providing
      fallback values in case there's no bridge name specified via IDF
      and no IP on the jumphost for one or more of the PDF networks;
    - re-enable dry-run to ease testing of the above;
    - add sample 'idf-pod1.yaml' to <mcp/config/labs/local>;

    The new behavior will try to determine the jump host bridge names:
    1. Based on IDF mapping, if available
    2. Based on PDF network matching with IP addrs on jumphost;
    3. Fallback to values passed via '-B';
    4. Fallback to default values hardcoded in the deploy script;

    Later, we will drop MaaS network env vars in favor of PDF vars,
    once the PDF template is generating them.

    Change-Id: If9cd65d310c02965b2e2bfa06a0d7e0f97f1dd48
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
    (cherry picked from commit 8ec927497b7ee0fd3b7346e957878173b080ef6a)

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 4dcd2f1..1423815 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 4dcd2f1b46dfe70841e017463166e600a753f19d
+Subproject commit 1423815e9c0bb31bbb7fba87017bb3a5df75e023