Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - [deploy] Use qemu:///system for virt-inst too

    Make sure `virsh` and `virt-install` use the same connection URI.

    Fixes: e49ffac1

    Change-Id: I437f063ce9936804248b7cf09f6ecfef6417f387
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 2dde16c..c034acc 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 2dde16ca1276a4982602dd303c5cf6d6324daa6f
+Subproject commit c034acca79007040c9e1b3e7ad22b166f6ff4d7a