Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - [vcp] Catch 'no response' for salt state

    JIRA: FUEL-358

    Change-Id: I8dc89676aa777068d1a13168bf7b7d7156903c03
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 4e1e397..f288af0 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 4e1e39700138700dd8744fbba71379fcf4f190bb
+Subproject commit f288af04f48a2f8634ea4aefe7626774fde24058