Update git submodules
* Update docs/submodules/releng from branch 'master'
- Merge "Disable Interactivity for and enable Pharos Backup"
- Disable Interactivity for and enable Pharos Backup
When running docker commands from an interactive shell the '-it' flags
are needed. Since the backup isn't running any interactive command,
these flags aren't needed and failing the job due to a tty not being
allocated to the Jenkins user.
Change-Id: I9bd81faaf548b3247ee1992f6db9c0258ebfc1fb
Signed-off-by: Trevor Bramwell <tbramwell@linuxfoundation.org>