Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - [noha] Align package repositories on all the nodes

    * replace UCA repo with MCP one on the remaining nodes
    * clean up haproxy out-of-use frontends:
      - Nova EC2 API
      - Glare API

    Change-Id: If8e6de2d95387c92ae96ad6069ec788ab229e1ce
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index b74d99a..5652931 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit b74d99a145ec87b55b7aa658a4cc5fe7438c4b5c
+Subproject commit 5652931324e9ae9495b9d731f53a482487b2f74f