Update git submodules

* Update docs/submodules/optf/has.git from branch 'master'
  to 602f77bf2e45936b0cd974788d2b58a5f5e2e397
  - [OPTFRA-585] Update release notes
    
    Change-Id: I7c284c816bfec1a06cbd995e161bd7a617d3e294
    Signed-off-by: Shankar Narayanan <snarayanan@research.att.com>
    Issue-ID: OPTFRA-585
    
diff --git a/docs/submodules/optf/has.git b/docs/submodules/optf/has.git
index c630070..602f77b 160000
--- a/docs/submodules/optf/has.git
+++ b/docs/submodules/optf/has.git
@@ -1 +1 @@
-Subproject commit c630070a3e37615c23456e080322fb25d9bace3d
+Subproject commit 602f77bf2e45936b0cd974788d2b58a5f5e2e397