NSXv DB model issues

[Kobi Samoray]

The NSXv model and migration has the following issue:
In DB migration, nsxv_security_group_section_mappings table is not dropped on downgrade.
In nsxv_models.py, tz_network_bindings_binding_type enum name should be nsxv_tz_network_bindings_binding_type to match migration code.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/146306

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/146306
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=681ac331765892cfc8885907f87d2b3168a66012
Submitter: Jenkins
Branch: master

commit 681ac331765892cfc8885907f87d2b3168a66012
Author: Kobi Samoray <email address hidden>
Date: Sun Jan 11 11:28:42 2015 +0200

    VMWare NSXv DB model bugfix

    DB Model and migration for VMWare NSXv had two issues:
    In DB migration, nsxv_security_group_section_mappings table is not dropped on downgrade.
    In nsxv_models.py, tz_network_bindings_binding_type enum name should be
    nsxv_tz_network_bindings_binding_type to match migration code.

    Change-Id: Ib5e8a2078d9c86da6375c7b6a39f48d5bba4e06e
    Closes-bug: #1409411