Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - [ha] Add route_wrapper to prx, kvm

    Similar to cmp, when route already exists, networking service fails
    to start on 'nginx:server' slaves ('kvm' in novcp case).

    JIRA: FUEL-349

    Change-Id: I2dc83ea78528533e92c9b9125e78b6e4387bdfe2
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 4608ea7..3f63be5 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 4608ea751ebbe43479e60215599eae506fd3b963
+Subproject commit 3f63be553d8be68b2dc39dd2813bf5ffef0c3207