Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "New testcase creation named "cloudify_ims_perf""
  - New testcase creation named "cloudify_ims_perf"

    * IMS deployment with "cloudify_ims" testcase
    * IXIA infrastructure creation with SNAPS
    * Module configuration with REST API
    * Configure and run the perf tests with REST API

    Change-Id: I3dfddda87f9e9f4f03df375f6a032ded26a627b3
    Signed-off-by: boucherv <valentin.boucher@orange.com>
    Co-Authored-By: Arturo Sordo Miralles <asordo@ixiacom.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 890076d..f45b958 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 890076da4b4d80c392c7e952282e9c721508b0d6
+Subproject commit f45b9587c5568c0b64cfedb94e4241e485ffce47