Update git submodules

* Update docs/submodules/oom/offline-installer.git from branch 'master'
  to a058898611c812462cbd8334d062c3746cd464fc
  - Merge "Update Testing Guide"
  - Update Testing Guide

    Covers aspects related to multi scenario testing.

    Clarifies build scripts and pre-build images
    usage scenarios.

    Change-Id: Ib30a80a8c695387b51c9014d046cabff33229244
    Issue-ID: OOM-1710
    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 7a24bfe..a058898 160000 (submodule)
--- a/docs/submodules/oom/offline-installer.git
+++ b/docs/submodules/oom/offline-installer.git
@@ -1 +1 @@
-Subproject commit 7a24bfe9681129dc7135229da151deaa3a2dc5e8
+Subproject commit a058898611c812462cbd8334d062c3746cd464fc