Update git submodules

* Update docs/submodules/vnfrqts/requirements.git from branch 'master'
  to 97ae86614de3219809ee99a34fa1b0ac6cf9598f
  - Merge "Add requirement in VNFRQTS-601"
  - Add requirement in VNFRQTS-601

    Add requirement for VNF/PNF TOSCA CASR is a zip file with .csar extension

    Change-Id: I6f0120524f189766f3d5ecc79894028c7c530ca3
    Issue-ID: VNFRQTS-601
    Signed-off-by: fzhang <fei.zhang@ericsson.com>

diff --git a/docs/submodules/vnfrqts/requirements.git b/docs/submodules/vnfrqts/requirements.git
index dbb3b16..97ae866 160000 (submodule)
--- a/docs/submodules/vnfrqts/requirements.git
+++ b/docs/submodules/vnfrqts/requirements.git
@@ -1 +1 @@
-Subproject commit dbb3b1609c9c23913f87c797b71c52ae7ceb53a0
+Subproject commit 97ae86614de3219809ee99a34fa1b0ac6cf9598f