Update git submodules

* Update docs/submodules/multicloud/k8s.git from branch 'master'
  to 502b61039dbdc9089768a49b87163e654d8cbfb7
  - Merge "Resolve the helm templates"
  - Resolve the helm templates

    Resolving the helm templates for each of the apps
    in the compositeApp by utilizing the helm libraries
    and thus getting the sorted templates with all values
    rendered.
    This is a subtask of adding instantiation APIs.

    Issue-ID: MULTICLOUD-1041
    Signed-off-by: Rajamohan Raj <rajamohan.raj@intel.com>
    Change-Id: Id4fddda69b5276b2409d835723b11367400ab6ea

diff --git a/docs/submodules/multicloud/k8s.git b/docs/submodules/multicloud/k8s.git
index 10b17da..502b610 160000 (submodule)
--- a/docs/submodules/multicloud/k8s.git
+++ b/docs/submodules/multicloud/k8s.git
@@ -1 +1 @@
-Subproject commit 10b17da590fc43622c6080815f65fbbb2721b640
+Subproject commit 502b61039dbdc9089768a49b87163e654d8cbfb7