Update git submodules

* Update docs/submodules/multicloud/k8s.git from branch 'master'
  to 0f74a76f923fe264cb0f1c828bc6f8c753452fb9
  - Merge "Preventing installer.sh execution to hang"
  - Preventing installer.sh execution to hang

    This newgrp command used is not suitable for shell scripting,
    it looks like misuse as it created new shell under right group
    but prevents further script execution as it has to be exited
    first.

    Change-Id: I974da3a4b8d1e0827c846150079d453789d89554
    Issue-ID: MULTICLOUD-632
    Signed-off-by: Michal Ptacek <m.ptacek@partner.samsung.com>

diff --git a/docs/submodules/multicloud/k8s.git b/docs/submodules/multicloud/k8s.git
index 194d508..0f74a76 160000 (submodule)
--- a/docs/submodules/multicloud/k8s.git
+++ b/docs/submodules/multicloud/k8s.git
@@ -1 +1 @@
-Subproject commit 194d50852b1217a51581ea96d833b5f506d81fd6
+Subproject commit 0f74a76f923fe264cb0f1c828bc6f8c753452fb9