Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Merge "log.sh: Collect /var/log from cluster nodes"
  - log.sh: Collect /var/log from cluster nodes

    Bring back <ci/deploy.sh> parameter `-L`, which is already passed by
    releng deploy script.

    Since we need to enable file_recv on salt master, do so by adding a
    new class in <virtual-mcp-ocata-common/infra/config.yml>, which will
    be inherited by all scenario reclass models.

    JIRA: FUEL-288

    Change-Id: I9b649315984fb8580b63883d0e06c1e1efd11057
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 8b810c6..e64bc77 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 8b810c6a4d80112a2d07cc5599984403d590579d
+Subproject commit e64bc7753700798b6b72fae6b80f6aa332c53bf2