Switch to $SDN_CONTROLLER_IP instead of $neutron_ip
Switch to $SDN_CONTROLLER_IP instead of $neutron_ip

ODL IP is now set to $SDN_CONTROLLER_IP in case of Apex and default.
It follows the next patch [1].

[1] https://gerrit.opnfv.org/gerrit/#/c/16779/

Change-Id: I60238705e45ed31a67da1518ec586e3f2970c13f
Signed-off-by: Cédric Ollivier <d48310251a4a484d041bc5d09a9ac4d86d20f793@orange.com>

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