Updated git submodules

Project: aai/event-client master a6e9869ad4eae6dbf7c1b9469188ee06f7ab9652

Merge "Use managed guava version"

Use managed guava version

Use centrally managed guava version specified in
oparent.  Includes upgrade to oparent 1.2.0.

This change was submitted by script and may include
additional whitespace or formatting changes.

Change-Id: Iaba563bf019d31bf0de5cd171ff3496742728282
Issue-ID: INT-619
Signed-off-by: Gary Wu <gary.i.wu@huawei.com>

diff --git a/docs/submodules/aai/event-client.git b/docs/submodules/aai/event-client.git
index 18a8821..a6e9869 160000 (submodule)
--- a/docs/submodules/aai/event-client.git
+++ b/docs/submodules/aai/event-client.git
@@ -1 +1 @@
-Subproject commit 18a88217232f09ca4ba50882ea92408d5846c0c7
+Subproject commit a6e9869ad4eae6dbf7c1b9469188ee06f7ab9652