Realigned usage of IP Adapter modules' APIs on Arduino.

Realigned usage of IP Adapter modules' APIs on Arduino.

This fixes an issue where an Arduino using an Ethernet shield did not
respond to incoming requests nor notified the application of incoming
requests.

Change-Id: I035120e7bbe4a5950d2ed36a357f06c85c1ef8db
Signed-off-by: Joseph Morrow <joseph.l.morrow@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/1388
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: John Light <john.j.light@intel.com>
Reviewed-by: Erich Keane <erich.keane@intel.com>