Fix a logic to send a response even in case to wrong request
Fix a logic to send a response even in case to wrong request

Even if request handling fails for some reasons, a response for the request
should be sent back to Mediator.

Change-Id: I70db07e9fb58f00613e7613de4d7ae06cc9b5bf9
Signed-off-by: Jihun Ha <3b6954bd112a2585eced0b86af3c85401a826886@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/10493
Tested-by: jenkins-iotivity <09cb29e8a2b473a2c978382eec13ee06fa017bda@opendaylight.org>
Reviewed-by: Hemant Mahsky <f2a5c78f9f82e7ba72f6ec196c711de22f77b97d@samsung.com>
Reviewed-by: Madan Lanka <f0ab8ffa6f9be130982d9ec09d220706b52daee1@samsung.com>

iotivity/iotivity,iotivity/iotivity,rzr/iotivity,rzr/iotivity,iotivity/iotivity,iotivity/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity,iotivity/iotivity,iotivity/iotivity,rzr/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity