Fix get platform info issue when ROUTING_GATEWAY
Fix get platform info issue when ROUTING_GATEWAY

Change-Id: I6356ee398b5c435f8c0a6d08e3032e78d83420a1
Signed-off-by: youngman <50db0fb4f5c4b51f4b46862758ba379603e9ee94@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/4077
Tested-by: jenkins-iotivity <09cb29e8a2b473a2c978382eec13ee06fa017bda@opendaylight.org>
Reviewed-by: Jon A. Cruz <d4ae605477945a543a3ecda8955c93978db16a84@osg.samsung.com>

santais/iotivity,santais/iotivity_1.1,santais/iotivity,santais/iotivity,rzr/iotivity,santais/iotivity_1.1,rzr/iotivity,santais/iotivity_1.1.0,santais/iotivity_1.1.0,santais/iotivity_1.1,santais/iotivity,santais/iotivity_1.1,iotivity/iotivity,santais/iotivity_1.1.0,santais/iotivity_1.1,santais/iotivity_1.1,santais/iotivity_1.1.0,iotivity/iotivity,rzr/iotivity,santais/iotivity_1.1.0,rzr/iotivity,iotivity/iotivity,rzr/iotivity,santais/iotivity_1.1,santais/iotivity,santais/iotivity,iotivity/iotivity,santais/iotivity_1.1.0,rzr/iotivity,rzr/iotivity,santais/iotivity_1.1.0,santais/iotivity_1.1,iotivity/iotivity,iotivity/iotivity,iotivity/iotivity,santais/iotivity,iotivity/iotivity