Update git submodules

* Update docs/submodules/fuel from branch 'stable/euphrates'
  - Merge "states: Break on error, retry states up to 5 times" into stable/euphrates
  - states: Break on error, retry states up to 5 times

    While applying scenario states, break on error, and retry failed
    state up to 5 times. Apply the same behavior for `salt.sh`.

    Add new deploy parameter, '-D', backed up by 'CI_DEBUG' env var,
    which gates deploy sh scripts logging (set -x).
    Also extend '-f' deploy parameter, allowing it to be specified
    more than once; the first occurence will skip infra VM creation,
    but still sync reclass & other config from local repo, while a
    second occurence will also disable config sync.

    To prevent glusterfs client state from failing due to non-existent
    nova user/group, move it after nova:compute's nova state is applied.

    Change-Id: I234e126e16be0e133d878957bd88fed946955de8
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
    (cherry picked from commit 23f9ef727310a8ef449372313785241df6557559)

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 2190992..abf3446 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 2190992952ccc7987f4fbcaf856340ce1ca69c1f
+Subproject commit abf3446f4eade931f3b98b0894028c242440ccbd