Update git submodules

* Update docs/submodules/oom/offline-installer.git from branch 'master'
  to 8f7b7135d9bb7272157990dddbc2a22a234db451
  - Merge "Update onap_rpm.list"
  - Update onap_rpm.list

    Some packages was obsollete and those packages was not in public CentOS repository.
    This commit updates versions of soma packages in onap_rpm.list.

    Issue-ID: OOM-2133

    Change-Id: I9b31fee243a22ced86b21fae3d78ed9c4cb6e208
    Signed-off-by: Jan Benedikt <j.benedikt@partner.samsung.com>

diff --git a/docs/submodules/oom/offline-installer.git b/docs/submodules/oom/offline-installer.git
index 2a355bb..8f7b713 160000 (submodule)
--- a/docs/submodules/oom/offline-installer.git
+++ b/docs/submodules/oom/offline-installer.git
@@ -1 +1 @@
-Subproject commit 2a355bb76368fd6bc727e8736cb07f6eabb7d038
+Subproject commit 8f7b7135d9bb7272157990dddbc2a22a234db451