Update git submodules
* Update docs/submodules/fuel from branch 'master'
- Merge "[baremetal] public gateway setup on prx nodes"
- [baremetal] public gateway setup on prx nodes
- prx: add route for public traffic to public interface
- prx: add route towards salt master through maas
- remove dashboard class from proxy node (already implements horizon)
- remove dashboard (and benchmark) class definitions (no longer used)
- (temporary) backport Pharos change for adapter template
JIRA: FUEL-305
Change-Id: Ia14a18ac0123c1134d8d99dc43da9a1f770001d0
Signed-off-by: Guillermo Herrero <guillermo.herrero@enea.com>