binding:vnic_type fails for endpoints that don't support that extension

[Randall Burt]

Because the Port plugin defines a default value for binding:vnic_type, this value is sent even if the underlying service does not support this extension. This prevents users from using OS::Neutron::Port against any provider not running this extension because create will fail with an unknown/unsupported parameter exception.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/143732

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/143732
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=07445bbe1f865b02ba1efea74ad9901d99aa4ceb
Submitter: Jenkins
Branch: master

commit 07445bbe1f865b02ba1efea74ad9901d99aa4ceb
Author: Randall Burt <email address hidden>
Date: Tue Dec 23 14:31:32 2014 -0600

    Remove default value from Port binding:vnic_type parameter

    Remove the default value from this parameter so that this
    plugin can be used with Neutron services that do not support
    the binding extension.

    Change-Id: Idb0cae57217905f5f191ed9fe24eabf226b2e7b1
    Closes-Bug: 1405266