Update git submodules

* Update docs/submodules/availability from branch 'master'
  - Modify format

    Modify format

    JIRA: HA-28

    Change-Id: I93cedf87f1a6d5aeee8adb63a5491294768afc8f
    Signed-off-by: fuqiao@chinamobile.com

diff --git a/docs/submodules/availability b/docs/submodules/availability
index bc37f3b..dc3cb63 160000 (submodule)
--- a/docs/submodules/availability
+++ b/docs/submodules/availability
@@ -1 +1 @@
-Subproject commit bc37f3b74db17b2ca550695c634f0b85e0d700a5
+Subproject commit dc3cb63f75c1265492f6143f94395a31a12305d2