Update git submodules

* Update docs/submodules/oom/offline-installer.git from branch 'master'
  to 929d4391d688128f24b44e1bba7b68843263b03f
  - Merge changes from topic "RHEL"

    * changes:
      Upgrade docker version to 18.09.5
      Update of docker for RHEL

  - Upgrade docker version to 18.09.5

    This patch upgrades docker version for
    Molecule tests to 18.09.5; it also sanitizes
    tasks in 'docker' role to supplement this
    change: https://gerrit.onap.org/r/c/87761/

    Change-Id: I14beffafb129b24e7c15f8da45f1a25e27ccae9c
    Issue-ID: OOM-1852
    Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>
  - Update of docker for RHEL

    Updating docker to 18.09 and its dependencies accordingly

    Issue-ID: OOM-1857

    Change-Id: Ifa3ee7091e2ceeecf8c56d48c31a20a33d273f43
    Signed-off-by: Tomáš Levora <t.levora@partner.samsung.com>

diff --git a/docs/submodules/oom/offline-installer.git b/docs/submodules/oom/offline-installer.git
index 0fd7a5a..929d439 160000 (submodule)
--- a/docs/submodules/oom/offline-installer.git
+++ b/docs/submodules/oom/offline-installer.git
@@ -1 +1 @@
-Subproject commit 0fd7a5a84706db4083f514dd1cefc205fa43b7c6
+Subproject commit 929d4391d688128f24b44e1bba7b68843263b03f