Update git submodules

* Update docs/submodules/oom/offline-installer.git from branch 'master'
  to e23ab1061b2ad64c8cd5c5d53d6ceb0da5e0baa2
  - Adding Ubuntu support in Ansible - nginx role

    Extending ansible playbooks of ubuntu support.
    Creating new test with Ubuntu image for Molecule in nginx role.

    Issue-ID: OOM-1671
    Signed-off-by: Jan Benedikt <j.benedikt@partner.samsung.com>
    Change-Id: I5f6a5aedfd9a2e17d3b1bb711d3e85a242b5e2d5

diff --git a/docs/submodules/oom/offline-installer.git b/docs/submodules/oom/offline-installer.git
index 8013a24..e23ab10 160000 (submodule)
--- a/docs/submodules/oom/offline-installer.git
+++ b/docs/submodules/oom/offline-installer.git
@@ -1 +1 @@
-Subproject commit 8013a2420fff9059cc67ccae22a1abeea4e26542
+Subproject commit e23ab1061b2ad64c8cd5c5d53d6ceb0da5e0baa2