Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "AArch64: SNAPS: CentOS, Ubuntu image config"
  - AArch64: SNAPS: CentOS, Ubuntu image config

    Change-Id: I8cbbfda7dd4089c122af4e0a459f4c03c1a3bb3a
    Signed-off-by: Catalina Focsa <catalina.focsa@enea.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 5065847..5612ba4 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 5065847a3af28f6d465b293cef3b060a8b222e6e
+Subproject commit 5612ba4811fcc27fb51c61dd18d595d3dfcd098d