Add delay after SF floating IP assignment
Add delay after SF floating IP assignment

JIRA: https://jira.opnfv.org/browse/SFC-48

The assignment of floating IPs to service functions needs some time
to complete, otherwise we get ssh failures

Change-Id: Ia3e789be95d20801ee2c741a473d407e936f4fb6
Signed-off-by: George Paraskevopoulos <97fa9f4b61869a8ee92863df90135c882f7b3aa0@intracom-telecom.com>

opnfv/functest,opnfv/functest,mywulin/functest,mywulin/functest