Update git submodules

* Update docs/submodules/vnfrqts/requirements.git from branch 'master'
  to 73e0fa50c26ab4c59abaf83243621c58e6b29b35
  - Merge "VNFRQTS - adding the tox needs for requirement json generation"
  - VNFRQTS - adding the tox needs for requirement json generation

    Issue-ID: VNFRQTS-872

    Signed-off-by: Hagop Bozawglanian <hagop.bozawglanian@att.com>
    Change-Id: Icdebd10c7097b4c2c267858d7dfd062062548711

diff --git a/docs/submodules/vnfrqts/requirements.git b/docs/submodules/vnfrqts/requirements.git
index 096fb68..73e0fa5 160000 (submodule)
--- a/docs/submodules/vnfrqts/requirements.git
+++ b/docs/submodules/vnfrqts/requirements.git
@@ -1 +1 @@
-Subproject commit 096fb6836ae0d00bda8a4886692293855eacaf2a
+Subproject commit 73e0fa50c26ab4c59abaf83243621c58e6b29b35