Update git submodules

* Update docs/submodules/bottlenecks from branch 'stable/euphrates'
  - Merge "Datasource and Dashboard automation script" into stable/euphrates
  - Datasource and Dashboard automation script

    JIRA: BOTTLENECK-180

    Automated creation of Prometheus datasource and
    dashboard for Grafana

    Change-Id: Id1e0323f74a0587b0fe3c80ba7a39843893f00ec
    Signed-off-by: Rutuja Surve <rutuja.r.surve@gmail.com>
    (cherry picked from commit 32a1ab12db4b85bde421465fec5bfb7e15f9ca38)

diff --git a/docs/submodules/bottlenecks b/docs/submodules/bottlenecks
index e8246e4..ea99f38 160000 (submodule)
--- a/docs/submodules/bottlenecks
+++ b/docs/submodules/bottlenecks
@@ -1 +1 @@
-Subproject commit e8246e4cdea258839af2ccae3fa349650293b2f4
+Subproject commit ea99f38bf373fea186c5b654eac547c81cab8be6