Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Merge "[baremetal] MaaS: Reduce timeout values"
  - [baremetal] MaaS: Reduce timeout values

    `maas_fixup` is already re-entrant, so we can execute it more than
    once during a commissioning/deploy cycle. Reduce the timeout waiting
    for all nodes to reach a stable state, so nodes stuck in 'Ready'
    state instead of reaching 'Deploying' get dealt with sooner (~5 min
    vs old 30 min).

    While at it, let `maas_fixup` handle machine deploy as well, so we
    can catch nodes stuck in 'Ready' state and re-trigger the deploy.

    Change-Id: Id24cc97b17489835c5846288639a9a6032bd320a
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 0d39b12..fbf520a 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 0d39b12184b63e155b338fff84115fef2a3f905a
+Subproject commit fbf520aa48b44b4b6cec070cc46fca007a41661a