Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "[fuel] Follow symlink to get k8s config"
  - [fuel] Follow symlink to get k8s config

    Change-Id: Icd7aef4c5a328e5e92e9740de3737a82acc71f8b
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 77cefc7..f0199e2 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 77cefc74573b40f7c3125a3738bc931b10573323
+Subproject commit f0199e263cdde2b09b7a00eed071e877a747ef27