Update git submodules

* Update docs/submodules/bottlenecks from branch 'master'
  - Some informations are redundant

    This patch is to remove the redundant results in Soak throughputs
    reports to TestDB

    Change-Id: Ib7e95df8353f3aa7b28187d352d5a6a213af2727
    Signed-off-by: Yang Yu <Gabriel.yuyang@huawei.com>

diff --git a/docs/submodules/bottlenecks b/docs/submodules/bottlenecks
index e493c4c..2833e62 160000 (submodule)
--- a/docs/submodules/bottlenecks
+++ b/docs/submodules/bottlenecks
@@ -1 +1 @@
-Subproject commit e493c4c97208c2b9348e4aec28ee3b650ef905af
+Subproject commit 2833e627cbf31eb89f313ec167f215c48fa70217