Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Merge "[ha] Add fabric to maas admin subnet"
  - [ha] Add fabric to maas admin subnet

    Change-Id: Ida4cf736dfe60886384e7e180d3e43faf811bd58
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index c875da0..8329a68 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit c875da0f72a06e05bdf76f1f2ab9e1a7136b8ae3
+Subproject commit 8329a68c3cd49db8a31ef16f592b6efffc038958