Add neutron.ovs.local_ip to static seed json

We had been leaving this blank, but neutron is
now asserting that it is an IP address as of
I57eee81e6821eb2cb26b3d07a39bc94b81243570

Change-Id: I720c153f1a511ef366577e2383f1215b218f6407
Closes-Bug: #1394956
Merge "Add neutron.ovs.local_ip to static seed json"