Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - states: Rename openstack, add baremetal_init

    To align with new cluster naming convention, rename 'openstack'
    state file to 'openstack_noha'.
    While at it, factor out baremetal setup from 'virtual_control_plane'
    into a new state that will be reused in upcoming scenarios, remove
    useless sync_all (automatically done after node reboot).

    FUEL-310

    Change-Id: I6d7e5db8f09305f2fd8eeca0199a2e85b08d2202
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
  - baremetal: openstack_proxy: Rename iface dicts

    Later we will want to merge multiple openstack_* classes, which would
    try to merge the 'single', 'dhcp' interface definitions and fail due
    to mismstached types (proxy has 'dict' types while the rest do not).
    Let's rename the proxy iface definitions to prevent that.

    JIRA: FUEL-310

    Change-Id: I1be18ddbbeae1bb3ee6de9bd783ee57b185cd477
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
  - baremetal: Use common database_init, control_init

    While at it, delete unused haproxy_openstack_api.

    JIRA: FUEL-310

    Change-Id: I01953b01624fe3e9da8074239d20056f3762efc7
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
  - Rename reclass models to add "-ha" or "-noha"

    Parse all reclass j2 templates, not only common + current scenario
    (useful when adding new scenarios later).

    JIRA: FUEL-310

    Change-Id: I8e87af702f83c42cb8f766bf6f121449aa5f2c26
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 81ee9b1..52e37b7 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 81ee9b180ab11507492783aa1d62927faa9876df
+Subproject commit 52e37b795bb975b1cb3bf1f684b009848c50a2d6