Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - Merge "xci: playbooks: Fix message on fail task for deployed scenario"
  - xci: playbooks: Fix message on fail task for deployed scenario

    The fail message was a bit weird since it listed all the scenarion
    information as below:

    TASK [Fail if {'scm': u'git', 'src':
    u'https://git.opnfv.org/releng-xci', 'scenario': u'os-nosdn-nofeature',
    'installers': [{'flavors': [u'ha', u'mini', u'noha'], 'installer':
    u'osa', 'distros': [u'opensuse', u'ubuntu', u'centos']}], 'version': u'master', 'role':
    u'xci/scenarios/os-nosdn-nofeature/role/os-nosdn-nofeature'} is not
    supported] ***
    skipping: [localhost]

    This looks awkward and we should only list the actual scenario name
    instead.

    Change-Id: I725793f91661f00606573906847336716fecd418
    Signed-off-by: Markos Chandras <mchandras@suse.de>

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index 5c19a78..88fc810 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit 5c19a7833eafc7a9547e6b16d68794dbcd211d7a
+Subproject commit 88fc810539b0ecc6ffd74cd3de88de527221938c