Update git submodules

* Update docs/submodules/oom/offline-installer.git from branch 'master'
  to b4cfa9b74e91941412c33c01656c34c6a198b8ea
  - Adding Ubuntu support in Ansible - application role install make

    Helm using "make" package for building local helm repository.
    In Ubuntu distribution is this package missing so is necessary to install it.

    Issue-ID: OOM-1671
    Signed-off-by: Jan Benedikt <j.benedikt@partner.samsung.com>
    Change-Id: I808dcb57396caf82a60d17f50515bae59b5d85ca

diff --git a/docs/submodules/oom/offline-installer.git b/docs/submodules/oom/offline-installer.git
index 97009aa..b4cfa9b 160000 (submodule)
--- a/docs/submodules/oom/offline-installer.git
+++ b/docs/submodules/oom/offline-installer.git
@@ -1 +1 @@
-Subproject commit 97009aaa3a8c1c12f1ea842581609992fc9506af
+Subproject commit b4cfa9b74e91941412c33c01656c34c6a198b8ea