Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "xci: Make it possible to skip deployment and healthcheck"
  - xci: Make it possible to skip deployment and healthcheck

    This change adds possibility for patch submitters to skip the full
    xci-verify if the change doesn't impact the deployment.

    Since the patch will be reviewed by others, reviewers can always
    ask the submitter to run it through full xci-verify by changing
    the topic and posting reverify or recheck as comment to gerrit
    change.

    The keyword to put in topic branch is skip-verify.

    Change-Id: Ib7be71cadd1e1ddff181936ae77753fbfbf3a1d3
    Signed-off-by: Fatih Degirmenci <fatih.degirmenci@ericsson.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index a9cabc9..990d2e6 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit a9cabc95f41010cca5c6ab3619dc3ced845266e3
+Subproject commit 990d2e63fcaf3eee6c2d5a8b447d926b180fef23