Update git submodules

* Update docs/submodules/aaf/authz.git from branch 'master'
  to b974205e2b2617e6d6dd3c6a6576012071cc9937
  - Merge "Sonar-API_Hello.java"
  - Sonar-API_Hello.java

    Remove the declaration of thrown exception 'java.lang.Exception', as it cannot be thrown from method's body

    Issue-ID: AAF-985
    Change-Id: Ia0f02407eb6ae388e577c0c4761b2594378033cc
    Signed-off-by: anushadasari <danush10@in.ibm.com>

diff --git a/docs/submodules/aaf/authz.git b/docs/submodules/aaf/authz.git
index 68cd9ee..b974205 160000 (submodule)
--- a/docs/submodules/aaf/authz.git
+++ b/docs/submodules/aaf/authz.git
@@ -1 +1 @@
-Subproject commit 68cd9ee29e4e7e813bc2ecc098a674ecfb4c2cbd
+Subproject commit b974205e2b2617e6d6dd3c6a6576012071cc9937