Update git submodules

* Update docs/submodules/multicloud/k8s.git from branch 'master'
  to ae7073df0ad8fc2964c25f87ef576ad95a058f6c
  - Merge "Adding Remove function to Mongo"
  - Adding Remove function to Mongo

    Adding remove function to remove
    a document only if no child refrences
    exist.

    Issue-ID: MULTICLOUD-922
    Signed-off-by: Ritu Sood <ritu.sood@intel.com>
    Change-Id: I7d199502635170a65f7029360c7436ac0389f2a9

diff --git a/docs/submodules/multicloud/k8s.git b/docs/submodules/multicloud/k8s.git
index 3b57e9d..ae7073d 160000 (submodule)
--- a/docs/submodules/multicloud/k8s.git
+++ b/docs/submodules/multicloud/k8s.git
@@ -1 +1 @@
-Subproject commit 3b57e9d29764c3c8ee2d398990ac2aafda1eb2b9
+Subproject commit ae7073df0ad8fc2964c25f87ef576ad95a058f6c