Update git submodules

* Update docs/submodules/integration/test from branch 'master'
  to 6c7206b957f6c565e35b1d1bf37d2bf00dea6653
  - Add ping retries and break on success

    Change the ping command to take a retries value. This
    allows the ping to be more independent of timing issues
    with flow additions.

    The cirros images and the SSHLibary have some weird quirks
    that the patch had to workaround:

    - The cirros images use a dash like shell and not bash. This
    required catering the shell command to be posix compliant.
    - The typical prompt of $ is in the shell command so it can't
    be used to read until. This was changed to read until regexp
    to look for the final rc=n from the command.
    - The SSHLibrary Write keyword actually consumes and returns
    the command itself, which was causing an early match. The regex
    helped here also since the regex would only match on the rc=n -
    so a number had to be in the output for it to match.

    JIRA: NETVIRT-1399
    Change-Id: I06d43fbd2ce7a0f32ccc60cdfd2783abaadd260b
    Signed-off-by: Sam Hague <shague@redhat.com>

diff --git a/docs/submodules/integration/test b/docs/submodules/integration/test
index f6a3676fdcc8d86fecba3f684980a79098c7be2a..6c7206b957f6c565e35b1d1bf37d2bf00dea6653 160000 (submodule)
--- a/docs/submodules/integration/test
+++ b/docs/submodules/integration/test
@@ -1 +1 @@
-Subproject commit f6a3676fdcc8d86fecba3f684980a79098c7be2a
+Subproject commit 6c7206b957f6c565e35b1d1bf37d2bf00dea6653