Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to 2b5b2e0ff77608cfdfc8a949076860672b38b93f
  - k8s: Add support for RKE-deployed clusters

    RKE is used as a Kubernetes cluster deployment method from ONAP Dublin
    release. RKE cluster definition is used to get access to necessary
    information.

    Issue-ID: SECCOM-235
    Change-Id: I588598011ea746b5f7ba327a48f1cea605e56d31
    Signed-off-by: Pawel Wieczorek <p.wieczorek2@samsung.com>

diff --git a/docs/submodules/integration.git b/docs/submodules/integration.git
index 57fae76..2b5b2e0 160000 (submodule)
--- a/docs/submodules/integration.git
+++ b/docs/submodules/integration.git
@@ -1 +1 @@
-Subproject commit 57fae769fca12e55b0890316112fa3da19803cdc
+Subproject commit 2b5b2e0ff77608cfdfc8a949076860672b38b93f