Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Merge "[baremetal] prx: Add management network VIP"
  - [baremetal] prx: Add management network VIP

    Include `openstack_web_public_vip` class for setting up the
    old VIP in the public network, use old class for mgmt VIP.
    Also change the generic hostname 'prx' to point inside mgmt net.

    Change-Id: Iff69394f16ede290d149a26b054a85371f00f8e0
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index b1849f6..b2f0994 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit b1849f630a8de3dfce2e91fc375d9e901b90843b
+Subproject commit b2f09948fa7cac7400eeff72859eccfcada07983