Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Fix command in prepare env to execute check_os.sh
    
    [1] introduced a bug when adding "sh" to the call.
    There is no need to use sh or bash in the command string.
    
    [1]: https://gerrit.opnfv.org/gerrit/#/c/36163/
    
    Change-Id: I9ce443721b69945a4a749da0caa6c008cc8ca284
    Signed-off-by: jose.lausuch <jose.lausuch@ericsson.com>
    

1 files changed, 0 insertions, 0 deletions

diff --git a/docs/submodules/functest b/docs/submodules/functest
-Subproject 28d74e22e5e7a252996c1e0cb29ccb21a97fdeb
+Subproject 4d669670f13e5ab4394a2c9e38073bf7281555a