Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 8245f7226a97bd650ecbe8a1330be8c182166589
  - Merge "Get XCI_FLAVOR as parameter from the commit msg"
  - Get XCI_FLAVOR as parameter from the commit msg

    When a new patch is pushed on releng-xci repo and the impact
    is not related to XCI_FLAVOR=mini, the environment preparation of CI
    should be done, choosing as XCI_FLAVOR noha or ha.

    This patch allows to get the XCI_FLAVOR parameter from commit message
    and specifically from xci-flavor parameter.

    Change-Id: Id5215e3fab1fc308435781204a6ed721a9c5a0c7
    Signed-off-by: Panagiotis Karalis <pkaralis@intracom-telecom.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 759b8bc..8245f72 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 759b8bcbf61ffd0940acfd138a440fb8debc00ad
+Subproject commit 8245f7226a97bd650ecbe8a1330be8c182166589