Update git submodules

* Update docs/submodules/bottlenecks from branch 'stable/fraser'
  - adaption to installers/pod configs

    Change-Id: I1083c96229a8d79bc9cf1bee4aa00de6aeae9d14
    Signed-off-by: Yang (Gabriel) Yu <Gabriel.yuyang@huawei.com>
    (cherry picked from commit c3b0e55865fc143757d87bf60ef8c49e72e90f7e)

diff --git a/docs/submodules/bottlenecks b/docs/submodules/bottlenecks
index dba21d5..42ca64f 160000 (submodule)
--- a/docs/submodules/bottlenecks
+++ b/docs/submodules/bottlenecks
@@ -1 +1 @@
-Subproject commit dba21d5d8e56ee647de0e167bd106426be734c2f
+Subproject commit 42ca64fdd5ddc1a6315fa023483595150aac35c1