Update git submodules

* Update docs/submodules/multicloud/k8s.git from branch 'master'
  to def02dfebada38bde91dc98db85eff3d8923a923
  - Add apps under composite app API

    Implemented create, get and delete
    handlers for the apps under composite
    app.

    Added unit tests

    Added remove function to mockdb

    Handled multipart POST request to
    upload file along with app data.

    Issue-ID: MULTICLOUD-998
    Signed-off-by: Srivahni Chivukula <srivahni.chivukula@intel.com>
    Change-Id: I25c1faba1212c0cc881c2cd599e8e66a7b93033e

diff --git a/docs/submodules/multicloud/k8s.git b/docs/submodules/multicloud/k8s.git
index af34fbc..def02df 160000 (submodule)
--- a/docs/submodules/multicloud/k8s.git
+++ b/docs/submodules/multicloud/k8s.git
@@ -1 +1 @@
-Subproject commit af34fbc0e67668723eb69a800165f6bfb5100dbf
+Subproject commit def02dfebada38bde91dc98db85eff3d8923a923