Update git submodules

* Update docs/submodules/oom/offline-installer.git from branch 'master'
  to f45f73f749fffb301d825ec53fae2878c505980d
  - Merge "Add Molecule tests for 'dns' role"
  - Add Molecule tests for 'dns' role

    This commit supplements 'Molecule test for
    infrastructure playbook' with role level tests.

    Change-Id: I14cdeedf1c80c0ee06bacf0a391ee1d7ccd6df55
    Issue-ID: OOM-1841
    Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>

diff --git a/docs/submodules/oom/offline-installer.git b/docs/submodules/oom/offline-installer.git
index 293ad25..f45f73f 160000 (submodule)
--- a/docs/submodules/oom/offline-installer.git
+++ b/docs/submodules/oom/offline-installer.git
@@ -1 +1 @@
-Subproject commit 293ad25456bb37dbd6827d26f87e495a2b7f1b85
+Subproject commit f45f73f749fffb301d825ec53fae2878c505980d