Update git submodules

* Update docs/submodules/functest from branch 'stable/fraser'
  - Modify config_patch.yaml according to the new snaps config

    It allows verifying ovs scenarios via snaps.

    JIRA: FUNCTEST-984

    Change-Id: I0fedadc0b9e265c424ae3221469b8d28b9a68afa
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
    (cherry picked from commit 06caf7c89f3a49185e9b9c1cfe40720b25ee2bc2)

  - Config flavor metadata via functest - docs update

    Related to the merged patch :
    "SNAPS via functest with flavor metadata configurable"

    Functest documents are updated accordingly.

    Change-Id: I874f041935f64b7240a5ec5de6e9c89b0f4a09fd
    Signed-off-by: Panagiotis Karalis <pkaralis@intracom-telecom.com>
    (cherry picked from commit a62dc183e6a916095b31f22a294d8f81306bf23b)

  - SNAPS via functest with flavor metadata configurable

    The required data for the SNAPS flavors are sent through
    the config_functest yaml file in order for the SNAPS scenarios to be
    configured accordingly.
    If the config_functest yaml file includes empty flavor_extra_specs
    or there is not included this parameter, the SNAPS scenarios will be
    executed using the hardcoded value.

    Change-Id: I4ef46d1fe93497d658414170a72c4520d8f37808
    Signed-off-by: Panagiotis Karalis <pkaralis@intracom-telecom.com>
    (cherry picked from commit 5a94beb62293151ef6f4e94ed500579de1f3673e)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 84a9f88..f794851 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 84a9f88b4a5cd873387d267d592c5595daf07240
+Subproject commit f7948517b7cfabf8405e64eb4c2057c0105b852f