Update git submodules

* Update docs/submodules/optf/has.git from branch 'master'
  to 920b9ff54e4b75973b27438158030c5a4736ffc6
  - Encryption/Decryption utility

    Putting in the encryption/decryption utility. Hit cipher-util inside
    the virutalenv to see its usage. The work is still in progress.

    Issue-ID: OPTFRA-683

    Signed-off-by: dhebeha <dhebeha.mj71@wipro.com>
    Change-Id: I7a4845c1318db8d14f1efbb0f98e785adf214e06

diff --git a/docs/submodules/optf/has.git b/docs/submodules/optf/has.git
index 9f8f704..920b9ff 160000 (submodule)
--- a/docs/submodules/optf/has.git
+++ b/docs/submodules/optf/has.git
@@ -1 +1 @@
-Subproject commit 9f8f7046d3978b6dbd05c7e5ad645b3dd9201249
+Subproject commit 920b9ff54e4b75973b27438158030c5a4736ffc6