Fixes and issue where a port cannot be created on
a specific subnet if there are multiple subnets
with the same name on different networks.
Allows both 'network' and 'subnet' in NIC information,
when looking up the subnet filter on the network_id when
both 'network' and 'subnet' is provided.
Story: 2009732
Task: 44152
Change-Id: Ied2d16ec33fe71522c3461d3df6e70fbfdd976b2