Update git submodules

* Update docs/submodules/oom/offline-installer.git from branch 'master'
  to 704e927f03c8809e88f64ce18268a6728019f8dd
  - Adding git package as additional one

    Adding git package into additional_packages.list
    It is needed to download additional stuff using git on infra server.

    Issue-ID: OOM-2338
    Signed-off-by: Ondřej Šmalec <o.smalec@partner.samsung.com>
    Change-Id: Ibc7708de697bfd5d2318d9ef30d4d556e20b0798

diff --git a/docs/submodules/oom/offline-installer.git b/docs/submodules/oom/offline-installer.git
index e085fdf..704e927 160000 (submodule)
--- a/docs/submodules/oom/offline-installer.git
+++ b/docs/submodules/oom/offline-installer.git
@@ -1 +1 @@
-Subproject commit e085fdfa7b61ef742dfe5da0fdc8b72c7eff571c
+Subproject commit 704e927f03c8809e88f64ce18268a6728019f8dd