Update git submodules

* Update docs/submodules/modeling/modelspec.git from branch 'master'
  to 6470e16f627a9d95a3408dcf5b4672fec07e0805
  - Merge ""Multiple changes to License Model to address comments from review.""
  - "Multiple changes to License Model to address comments from review."

    Issue-ID: ONAPMODEL-4 (and subtasks)

    Change-Id: Ie4d6b8000d761ad8a7faabf78cfd1729fa181a8f
    Signed-off-by: SRicci <salvatore.ricci@att.com>

diff --git a/docs/submodules/modeling/modelspec.git b/docs/submodules/modeling/modelspec.git
index 033573d..6470e16 160000 (submodule)
--- a/docs/submodules/modeling/modelspec.git
+++ b/docs/submodules/modeling/modelspec.git
@@ -1 +1 @@
-Subproject commit 033573d6f6e1617b9e150e4633f2e92b86308b72
+Subproject commit 6470e16f627a9d95a3408dcf5b4672fec07e0805