Update git submodules

* Update docs/submodules/dovetail from branch 'master'
  - Dynamic results version and vnf type recognition

    This patch makes it able to fetch the version from the testsuite.
    Furthermore, in case of ONAP test cases it adds the vnf_type to the
    produced results.json file in order to be parsed from the results
    portal. Finally, it creates a testuite for ONAP TOSCA related tests.

    Change-Id: I613358c445cfe62730b98fee5e8c6fba7d322e90
    Signed-off-by: Stamatis Katsaounis <mokats@intracom-telecom.com>

diff --git a/docs/submodules/dovetail b/docs/submodules/dovetail
index 6b9e625..de39be8 160000 (submodule)
--- a/docs/submodules/dovetail
+++ b/docs/submodules/dovetail
@@ -1 +1 @@
-Subproject commit 6b9e62527829867f52a8d18efb09d85b76b35436
+Subproject commit de39be86dddc6fd590d9dbc9bad084e6be45aa13