Update git submodules

* Update docs/submodules/bottlenecks from branch 'stable/fraser'
  - update release note for fraser 6.2

    Change-Id: Ifcafaa6df33b654d8a62a2b5d179701737e12fdc
    Signed-off-by: Yang (Gabriel) Yu <Gabriel.yuyang@huawei.com>
    (cherry picked from commit b7a10fea892cc43b58ca9b48ca2a754b859b066d)

diff --git a/docs/submodules/bottlenecks b/docs/submodules/bottlenecks
index 8e751cb..3206dad 160000 (submodule)
--- a/docs/submodules/bottlenecks
+++ b/docs/submodules/bottlenecks
@@ -1 +1 @@
-Subproject commit 8e751cb5c17f2634c0f19aeedc6c4a75e4c3d946
+Subproject commit 3206dad00a2cdc73d8e77cd8316ee74cf2386475