Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Read aarch64 architecture"
  - Read aarch64 architecture

    Read aarch64 architecture from env variable exported
    by changes from patch https://gerrit.opnfv.org/gerrit/#/c/38689/

    Change-Id: If0fc94e8fe67871b94934c305c019b57872ecb07
    Signed-off-by: Delia Popescu <delia.popescu@enea.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 35373ca..5065847 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 35373ca7f27431f8dd59b45f8d2cf7618b98c699
+Subproject commit 5065847a3af28f6d465b293cef3b060a8b222e6e