Update git submodules

* Update docs/submodules/bottlenecks from branch 'master'
  - change Dockerfile to adapt Branches

    Reverse dockerfile

    Change-Id: I827209833ae4e34e20afba522557c83f4acaaf45
    Signed-off-by: Yang Yu <Gabriel.yuyang@huawei.com>

diff --git a/docs/submodules/bottlenecks b/docs/submodules/bottlenecks
index 84bc638..6fc8b39 160000 (submodule)
--- a/docs/submodules/bottlenecks
+++ b/docs/submodules/bottlenecks
@@ -1 +1 @@
-Subproject commit 84bc638b92487b9921007cfdcf9d6ced7cb1c334
+Subproject commit 6fc8b3930b871cf78e56df98ef15df320efde4af