Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - [ha] Pin UCA's libvirt/qemu on computes

    * install libvirt/qemu packages only from UCA on computes
    * shift panko/aodh db settings to telemetry nodes

    Change-Id: I0f4434aa8d2139870afaed9d9831db0a9af10e51
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 3ed2d8d..c875da0 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 3ed2d8dab3d75628cd1f7edd47051623c643592c
+Subproject commit c875da0f72a06e05bdf76f1f2ab9e1a7136b8ae3