Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Implement trunk ports testcase"
  - Implement trunk ports testcase

    The tempest testcases have been integrated from Neutron trunk
    testcases. It also enables every Neutron extension which may raise
    side effects [1].

    [1] https://docs.openstack.org/tempest/latest/sampleconf.html

    JIRA: FUNCTEST-926

    Change-Id: I05015acf119f504ce0a5539d677719de874594ad
    Signed-off-by: Panagiotis Karalis <pkaralis@intracom-telecom.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 95c0371..7e2fa19 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 95c0371e3fe3d515a96d941bf303a853a3f2787b
+Subproject commit 7e2fa1942daf7b276064ca6bd7a4fcc87de16578