Fixes bug
1121855
firewall_driver configuration option has been introduced in the patch
of OVS security group support and it affects Linux Bridge plugin.
The default value of firewall_driver is NoopDriver.
Thus firewall_driver configuration is required in Linux Bridge plugin.
Change-Id: I403be91b01eb6fa679dab28cd4995c85d12100b9
[AGENT]
# Agent's polling interval in seconds
polling_interval = 2
+
+[SECURITYGROUP]
+# Firewall driver for realizing quantum security group function
+firewall_driver = quantum.agent.linux.iptables_firewall.IptablesFirewallDriver