Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Change score calculation for functest reporting"
  - Change score calculation for functest reporting

    the goal is not to penalize scenario with few iteration due to
    CI pipeline constraints
    until now the top score was calculated on the base on 4 iterations, it means
    whatever the number of iterations, we always consider the possible top score
    based on at least 4 iterations

    each case can get
    - 3 points (last 4 iterations PASS)
    - 2 points (more than 1 PASS over the last 10 days but 1 FAIL of the last 4)
    - 1 point (at least 1 PASS over the last 10 days)
    - no point  (never work)

    so if we consider a scenario with 10 cases, the top score is
    30 = 10*3 (max points)

    the coefficient to calculate the top score is not the number of iterations

    - 1 iteration => possible  top score 10
    - 2 iterations  => top score 20
    - 3 iterations => top score 20
    - 4 or more iterations => top score 30

    previously top score was systematically 30

    https://wiki.opnfv.org/plugins/servlet/mobile#content/view/6828617

    Change-Id: I01102bc00766b7f5b58e73befa7d5328fcc895cc
    Signed-off-by: Morgan Richomme <morgan.richomme@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index d677ea8..69ebaf3 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit d677ea872ffd8303fb7f08c651a39988886e59d5
+Subproject commit 69ebaf3232e7616e4b31a6b9d5058660e845e81d