SFC testcase IP tables policy
SFC testcase IP tables policy

Add iptables rule to open requests.
Tacker client fails to connect without this firewall rule.

Change-Id: I7ca0258110571d8aacdf8214830e4fce5a172c59
Signed-off-by: George Paraskevopoulos <97fa9f4b61869a8ee92863df90135c882f7b3aa0@intracom-telecom.com>

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