Update git submodules

* Update docs/submodules/bottlenecks from branch 'master'
  - bug-fix: fix neutron quota setting

    JIRA: BOTTLENECK-215

    also fix the bug for type error: converted string

    Change-Id: Ic56b5ab5c49d8fdbcf49ba4571c2286d5f7bc422
    Signed-off-by: Yang Yu <Gabriel.yuyang@huawei.com>

diff --git a/docs/submodules/bottlenecks b/docs/submodules/bottlenecks
index 6a23b35..d44ed0f 160000 (submodule)
--- a/docs/submodules/bottlenecks
+++ b/docs/submodules/bottlenecks
@@ -1 +1 @@
-Subproject commit 6a23b35f2b0286132c3bc9f4d4e19a42c7e2f45c
+Subproject commit d44ed0fc0cbcb73f68494aee56615bdbe5dc419b