Fix ip_conntrack_proto_sctp modprobe error
Fix ip_conntrack_proto_sctp modprobe error

tools/configure_for_func_testing.sh tries to load the
ip_conntrack_proto_sctp module unconditionally, even if
it doesn't exist.  Detect and only load if necessary.

Trivialfix

Change-Id: Idff8c9402d8ffcb21ae4f561642f65aeebbe8067

mahak/neutron,mahak/neutron,noironetworks/neutron,noironetworks/neutron,openstack/neutron,mahak/neutron,openstack/neutron,huntxu/neutron,openstack/neutron,huntxu/neutron