Add OVS provider network params to all.pp

All.pp currently doesn't support provider networks with
OVS due to lacking a few of the necessary parameters.  This
patch adds them to enable all-in-one deployments that support
provider networks.

Change-Id: I5ff349a47a40a98a3c768e571f1ef9346265109f
Implements: blueprint all-add-ovs-provider-params