Update git submodules

* Update docs/submodules/logging-analytics.git from branch 'master'
  to 8699c6606de31c116cd45f2fc74f048a5e3f397c
  - pylog is not compatible with python3

    fix mdcContext bugs

    Change-Id: I29117652382e15e5eec2cf0cb91c573beed4526e
    Issue-ID: LOG-1072
    Signed-off-by: maopengzhang <zhang.maopeng1@zte.com.cn>

diff --git a/docs/submodules/logging-analytics.git b/docs/submodules/logging-analytics.git
index 8ae641c..8699c66 160000 (submodule)
--- a/docs/submodules/logging-analytics.git
+++ b/docs/submodules/logging-analytics.git
@@ -1 +1 @@
-Subproject commit 8ae641cab9b161d9c31f0287a4cfca0600f1d665
+Subproject commit 8699c6606de31c116cd45f2fc74f048a5e3f397c