Update git submodules

* Update docs/submodules/functest from branch 'stable/euphrates'
  - Modify the egg name for parser

    Currently the egg name for heat-translator has been changed
    to nfv-heattranslator in parser project, this patch will modify
    the docker file.
    related patches:
    https://gerrit.opnfv.org/gerrit/#/c/41261/

    Change-Id: I2d5d214c722fc133aa015a1c9620a49709db17bb
    Signed-off-by: shangxdy <shang.xiaodong@zte.com.cn>
    (cherry picked from commit d3b74fac61c255430b5589b49d714b441772e248)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index f39a901..a7d30b3 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit f39a901913177ff7d764714357a07ef5b8c1c9fe
+Subproject commit a7d30b3ee2cb66b56b169e231a550351d33353fe