Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Put domain name in CONST"
  - Put domain name in CONST

    Domain name is not obtained in source_rc_file() but used in the
    patch https://gerrit.opnfv.org/gerrit/#/c/39109/.

    Change-Id: Iceaf352f7ad5e15f15906f0e3aa1c5ab5ae30a42
    Signed-off-by: Alex Yang <yangyang1@zte.com.cn>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 2890159..9622f56 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 2890159f9da2dd13f5db6f85ca039922205df836
+Subproject commit 9622f5603e90166a92e87aa464f14d5db80a902a