[IOT-1523] Update payload for sending to MQ.

[IOT-1523] Update payload for sending to MQ.

https://jira.iotivity.org/browse/IOT-1523
Notification message payload and MQ message payload is different befour.
Currently, MQ payload is updated to same with Notifiacation message payload.
in this patch modified MQ payload is updated.

Change-Id: I1f0191b42df69812280be8a333eee23cdeab27c9
Signed-off-by: KIM JungYong <jyong2.kim@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/14447
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Chihyun Cho <ch79.cho@samsung.com>
Reviewed-by: Uze Choi <uzchoi@samsung.com>