Build IoTivity if needed
Build IoTivity if needed

Change-Id: Ie7d9fad12ee730f8d78453282a20f425d665c878

hgl888/iotivity-extensions-crosswalk,hgl888/iotivity-extensions-crosswalk,crosswalk-project/iotivity-extensions-crosswalk,crosswalk-project/iotivity-extensions-crosswalk,crosswalk-project/iotivity-extensions-crosswalk,hgl888/iotivity-extensions-crosswalk,hgl888/iotivity-extensions-crosswalk,crosswalk-project/iotivity-extensions-crosswalk