Update git submodules

* Update docs/submodules/vid.git from branch 'master'
  to f670a8236f9bd398f0b1a6be30c2b08122383925
  - Merge "VfModule and VolumeGroup RequestParameters: introduce objects hierarchy"
  - VfModule and VolumeGroup RequestParameters: introduce objects hierarchy

    -- RequestParametersVfModuleOrVolumeGroup
       +-- RequestParametersVfModuleOrVolumeGroupInstantiation
       +-- RequestParametersVfModuleUpgrade

    Change-Id: I97ef46c7cf66936685e030a73b42d4deac7403b5
    Issue-ID: VID-603
    Signed-off-by: Ittay Stern <ittay.stern@att.com>

diff --git a/docs/submodules/vid.git b/docs/submodules/vid.git
index b6f8fb7..f670a82 160000 (submodule)
--- a/docs/submodules/vid.git
+++ b/docs/submodules/vid.git
@@ -1 +1 @@
-Subproject commit b6f8fb70024e863152ed9a234e3535363b7d23f9
+Subproject commit f670a8236f9bd398f0b1a6be30c2b08122383925