Update git submodules

* Update docs/submodules/bottlenecks from branch 'stable/danube'
  - Bug fix: Bottlenecks sometimes deadlock

    JIRA: BOTTLENECK-173

    This patch will change the way to call multithreading.
    And change some encoding error about Yardstick config

    Change-Id: I04803bff6acaad1089d180b104652049f1f0a485
    Signed-off-by: Ace Lee <liyin11@huawei.com>
    (cherry picked from commit fe6c624370552e141cc80d1b697de7d9717763c9)

diff --git a/docs/submodules/bottlenecks b/docs/submodules/bottlenecks
index 41f9a76..0509480 160000 (submodule)
--- a/docs/submodules/bottlenecks
+++ b/docs/submodules/bottlenecks
@@ -1 +1 @@
-Subproject commit 41f9a76fbb5d5ae8aa97d02ec0965717dc8093b2
+Subproject commit 05094807a0908e314e81d2d1c79255856ff2bcf2