Update git submodules

* Update docs/submodules/octopus from branch 'master'
  - Merge "Scenario Lifecycle Document - update chapter 8 Current Status"
  - Scenario Lifecycle Document - update chapter 8 Current Status

    - short paragraphs on early OPNFV versions and their scenarios
    - short summary of scenario analysis
    - Danube scenario tree

    Jira OCTO-162
    Signed-off-by: ulik <ulrich.kleber@huawei.com>
    Change-Id: I9a05f8756cb147a9d0291daaf58ed44032021439

diff --git a/docs/submodules/octopus b/docs/submodules/octopus
index 8023330..aa5adc4 160000 (submodule)
--- a/docs/submodules/octopus
+++ b/docs/submodules/octopus
@@ -1 +1 @@
-Subproject commit 8023330c70b1a516ecccac6f5153fc85a7e7b140
+Subproject commit aa5adc4bacf1e20079c82f1e9c8ab252496afca1