Add rt query parameter to reduce response packet size when discovery

Add rt query parameter to reduce response packet size when discovery

This patch add rt=oic.r.doxm query parameter in order to reduce response packet size when secure port discovery.

Change-Id: I96f127ca757256c882d9bc3a97906a0c3b6e05c3
Signed-off-by: Joonghwan Lee <jh05.lee@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/13437
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Chul Lee <chuls.lee@samsung.com>
Reviewed-by: Randeep Singh <randeep.s@samsung.com>
(cherry picked from commit 28c6ab3d9f116cefb365373069e00cee895f490a)
Reviewed-on: https://gerrit.iotivity.org/gerrit/13805