Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - Merge "Ensure XCI_DEVEL_ROOT is removed"
  - Ensure XCI_DEVEL_ROOT is removed

    It is important to start with a clean XCI_DEVEL_ROOT in order to
    ensure the leftovers from the previous deployment doesn't result
    in successful or failed deployments due to not having it in sync
    with the latest updates.

    Change-Id: I00d77e1fc62cccda7920af3469af9d44247780f4
    Signed-off-by: Fatih Degirmenci <fatih.degirmenci@ericsson.com>

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index 3133644..3e94b3c 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit 313364481b13da8b09242d7275c52192d3e3438e
+Subproject commit 3e94b3c49f25a426aeb18b14bfa475d803449652