Update git submodules

* Update docs/submodules/fuel from branch 'stable/danube'
  - Revert: Blueprint "bp/distributed-serialization"

    Until upstream fixes bug [1], partially revert blueprint
    implementation [2]:
    - fuel-agent: no-op, we overwrite fuel_bootstrap_cli.yaml anyway;
    - fuel-library: no-op, keep newly added port config in place;
    - fuel-web: revert all blueprint related changes;

    NOTE: When this blueprint becomes part of Fuel@OPNFV, we need to
          update our "fuel_bootstrap_cli.yaml".

    [1] https://bugs.launchpad.net/fuel/+bug/1676197
    [2] https://review.openstack.org/#/q/topic:bp/
        distributed-serialization+status:merged+branch:stable/newton

    JIRA: FUEL-265

    Change-Id: Icf392a3446e5c89c2592d1733bc1f3401b7d69ad
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
    (cherry picked from commit 8b28c44a4be6beef8a71e672f543001bcc0a080f)

  - Log delete environment issue

    Log delete environment issue instead of fail with it since
    it ain't severe operation to break down whole deployment process.

    Change-Id: Ibbdf41a1323970068c09efcd1355f95f030ef1e6
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>
    (cherry picked from commit cc3f3226b0e48c035549247d8a716f91675955f8)

  - [kvm-plugin] Update the kernel version

    Change-Id: Ieeb773e4801073caf50e5b795054aab64d3c7009
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>
    (cherry picked from commit e74dd025dceb27c8d28f17f11bc34fb88d1f7ff3)

  - Extend error messages list

    Start redeploy if errors for the following bugs are caught:
    https://bugs.launchpad.net/fuel/+bug/1673797
    https://bugs.launchpad.net/fuel/+bug/1672683

    Change-Id: I41bc10d983f193e4206f0913358f5710f034070a
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>
    (cherry picked from commit cffc4bb6d13b67d7e1c7ee0f1412ded1704fe999)

  - Merge "Revert "[kvm/dpdk] Switch vlan mode to vxlan"" into stable/danube
  - [kvm-plugin] Rename node_reboot task

    Change-Id: I5251f209c74613d8b4683f1923166513762cd526
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>
    (cherry picked from commit 5ef4fd12ed427658ea41efea280f03bc9e07a234)

  - Revert "[kvm/dpdk] Switch vlan mode to vxlan"

    This reverts commit b8584eeb13c75d7f20a4582d287ab7ac1d52f0af.
    vxlan mode has broken in upstream:
    https://bugs.launchpad.net/fuel/+bug/1673767

    Change-Id: I71fabf1c74f419ab1f6d5d04a294be98fa927ef3
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>
    (cherry picked from commit 8e27ddc4486407f52c8de29639efc1cc724f0471)

  - Merge "f_tacker-pluginbuild: Force cache ID change" into stable/danube
  - Merge "Revert "Increase tcp_retries2 value"" into stable/danube
  - Merge "f_repos: Set git patch format explicitly" into stable/danube
  - f_tacker-pluginbuild: Force cache ID change

    This will force a rebuild of Tacker plugin, to bypass poisoned
    cache.

    Change-Id: I77a028d56cc6202f799c7c0af3b688674256106c
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
    (cherry picked from commit f20bfafbcb3e75f13b5ba2955ec38f13baad452d)

  - Revert "Increase tcp_retries2 value"

    This reverts commit 0b313e2c089d296232a9a7ca43e9f37d514400a0.
    This patch has been merged into upstream.

    Change-Id: I15ba6f161547b7fd928c4ed54f8a9eef58046e48
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>
    (cherry picked from commit e6126911ef9d012a83d5733a379627307878242e)

  - f_repos: Set git patch format explicitly

    Skip patch format auto-detection, by setting it explicitly to "mbox".
    This allows adding license headers to patch files.

    JIRA: ARMBAND-236

    Change-Id: I2b19ced80984ea98e220935c9d36836e62203bb7
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
    (cherry picked from commit 672c1df70b8cafe61a3edaa66fbf9e8dba2b12e2)

  - Catch nodes flapping issue

    Wait for nodes to become online to row down the bug
    https://bugs.launchpad.net/fuel/+bug/1672969

    Change-Id: Ic0621a415461c1552ebfc9cd7d1ab2061ea7a8cb
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>
    (cherry picked from commit 2fff9fec802617a34aa4ceac8f328d34101189c6)

  - Merge "Rebase to fuel ovs plugin stable/10.0" into stable/danube
  - Merge "Rebase barometer to stable/danube" into stable/danube
  - Merge "Rebase vsperf to stable/danube" into stable/danube
  - Rebase to fuel ovs plugin stable/10.0

    Change-Id: Ib1cce4ca265ec8716272597aeff97d8195276e61
    Signed-off-by: Guo Ruijing <ruijing.guo@intel.com>
    (cherry picked from commit f842cfee2b8552bca436323af6ee062d173d6b3f)

  - Rebase barometer to stable/danube

    Change-Id: I5c550d8919a9b2147745caa0c7302f55291ca437
    Signed-off-by: Guo Ruijing <ruijing.guo@intel.com>
    (cherry picked from commit 79a05a1da338c74d2c01b1336d112a67cf6fc36d)

  - Rebase yardstick to stable/danube

    Change-Id: I8d284e92608d3fa89cbbe97ccb32536f3a9fae37
    Signed-off-by: Guo Ruijing <ruijing.guo@intel.com>
    (cherry picked from commit 989d8ea5ebf2c2fda2bc3792830ba525273189e6)

  - Rebase vsperf to stable/danube

    Change-Id: I621d45c2db74ca3a030f15e29e167a890560ee2d
    Signed-off-by: Guo Ruijing <ruijing.guo@intel.com>
    (cherry picked from commit bcb67861f5e6fb51cfd051efce71fbff73a29222)

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 4b647cf..0bc3d7a 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 4b647cf926eeb373a90dee77d1dc915ae5a6c665
+Subproject commit 0bc3d7a2e72d7b6c48ccb3e3c4512c592658a9b3