Update git submodules

Update git submodules

* Update docs/submodules/dovetail from branch 'master'
  - Include full date in name of compressed result file

    The name of the compressed result file included a timestamp according
    to the pattern "day_hour_minute". This is a rather uncommon timestamp
    and can cause confusion. This patch changes the timestamp to a more
    common "YearMonthDay-HourMinute" format.

    Please note: Please check if this change has an impact on the web
    portal.

    Change-Id: Ife41050bc1d5ca6942706b756d03a1d0d251ae41
    Signed-off-by: Georg Kunz <georg.kunz@ericsson.com>