Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to 6a5ec681a93a0ddf55080f164187791ed92578be
  - Fix the bug of cli command error when onboard ns

    Change-Id: I832a1cbbbf8b882089f941033fdc2acefce7e387
    Issue-ID: INT-1239
    Signed-off-by: yangyan <yangyanyj@chinamobile.com>
  - Fix bug of cli command error when onboard vnf

    Change-Id: I25ca6c5a2cdf6eaca44cdcdb3f94e55c6bad899a
    Issue-ID: INT-1239
    Signed-off-by: yangyan <yangyanyj@chinamobile.com>
  - Fix invalid string error of vnf onboard

    Change-Id: I1f0077554db7d37ed33c45cbc68d8fb554339539
    Issue-ID: INT-1239
    Signed-off-by: yangyan <yangyanyj@chinamobile.com>

diff --git a/docs/submodules/integration.git b/docs/submodules/integration.git
index a3324ab..6a5ec68 160000 (submodule)
--- a/docs/submodules/integration.git
+++ b/docs/submodules/integration.git
@@ -1 +1 @@
-Subproject commit a3324ab0a92e199b36767f9b13e14a5963e19c60
+Subproject commit 6a5ec681a93a0ddf55080f164187791ed92578be