Update git submodules

* Update docs/submodules/multicloud/k8s.git from branch 'master'
  to 8e7a20777f2100324526a34b4b6c943b512df0fb
  - Move cluster management into its own microservice

    Split out the cluster provider and cluster APIs
    and packages into a separate microservice to align
    with the architecture.

    Issue-ID: MULTICLOUD-1029
    Signed-off-by: Eric Multanen <eric.w.multanen@intel.com>
    Change-Id: I08f357b5a488004a2389b72a178ae33e101d1540

diff --git a/docs/submodules/multicloud/k8s.git b/docs/submodules/multicloud/k8s.git
index 0c22baf..8e7a207 160000 (submodule)
--- a/docs/submodules/multicloud/k8s.git
+++ b/docs/submodules/multicloud/k8s.git
@@ -1 +1 @@
-Subproject commit 0c22bafd470e36647157b6d01221cb17841f360a
+Subproject commit 8e7a20777f2100324526a34b4b6c943b512df0fb