Package iptables-config is created for iptables customized
config file. And there is no other change for iptables, so
we could replace iptables srpm with rpm directly.
iptables-config is set to depends on iptables, so iptables
could be installed automatically.
Test:
Pass build and multi node deploy test. Confirm iptables
config file is the same as before.
Story: 2003768
Task: 27600
Depends-On: https://review.openstack.org/617170
Change-Id: I08daae6f53de43688e9edb2506398e3391589fe0
Signed-off-by: slin14 <shuicheng.lin@intel.com>