Don't hard code the baremetal seed IP in seedrc
Don't hard code the baremetal seed IP in seedrc

This makes it so you can use seedrc for networks other than
192.0.2.0/24 (if configured).

Change-Id: I62abfb20d097b59bbe0687aaad48f07addad611c

rdo-management/tripleo,rdo-management/tripleo