Update git submodules

* Update docs/submodules/oom/offline-installer.git from branch 'master'
  to 1266d180911300c4236a6e1411b1f1782884dafb
  - Improve nfs role

    This commit improves the nfs role by
    using cluster_ip variable instead of ansible_host for getting
    nfs client/server address, and
    using /etc/exports.d instead of /etc/exports for
    exporting nfs filesystem.
    Also, this commit fixes other
    issues in molecule found along the way.

    Change-Id: Ibd4ea5d4fd937116e2dc9e1b6f85c3e019f62e17
    Issue-ID: OOM-1770
    Signed-off-by: Michal Zegan <m.zegan@samsung.com>

diff --git a/docs/submodules/oom/offline-installer.git b/docs/submodules/oom/offline-installer.git
index bb3bef8..1266d18 160000 (submodule)
--- a/docs/submodules/oom/offline-installer.git
+++ b/docs/submodules/oom/offline-installer.git
@@ -1 +1 @@
-Subproject commit bb3bef83ca562b9aadc288b3ec46264d73ec73ac
+Subproject commit 1266d180911300c4236a6e1411b1f1782884dafb