Rename check_nvp_config utility tool
Rename check_nvp_config utility tool

Add new entry point whilst preserving the old ones
for backward compatibility.

Partial-implements blueprint nicira-plugin-renaming

Change-Id: I3c5b5dcd316df3867f434bbc35483a2636b715d8

openstack/networking-mlnx,stackforge/networking-mlnx,moshele/networking-mlnx,openstack/networking-mlnx,moshele/networking-mlnx-master,stackforge/networking-mlnx