Update git submodules
* Update docs/submodules/apex from branch 'stable/fraser'
- Merge "Fix nosdn fdio scenario" into stable/fraser
- Fix nosdn fdio scenario
- Update networking-vpp to use master branch
- Update THT vpp ml2 environment file with correct parameters
- Update external network creation command to use 'externa' as
provider network name.
- Remove vpp network settings file as it's not used
apex-tripleo-heat-templates: Ia25db8456f1ad6beb96c7b9b5f318b166ef4576a
apex-puppet-tripleo: I231054a433eb7e598a6e24f6eaea02d476e776de
Change-Id: I4a1f68c75ae3b7d2a5b347d05abf0d025e8b116b
Signed-off-by: Feng Pan <fpan@redhat.com>
(cherry picked from commit
5acf4e708c68147ef20c67f8d4648e6027c1e20d)